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9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 2.1 Abbreviations | In addition to those below, definitions used in the present document are listed in GSM 01.04.
AU Access Unit (CCITT X.31)
CF Conversion Facility (for Ttx/Tx service interworking)
GMSC Gateway MSC
HDLC High Level Data Link Control
IWU Interworking Unit (CCITT X.71/CCITT X.75)
LAPB Link Access Procedure Balanced
PLP Packet Layer Protocol
TDS Teletex Document Store
TID Terminal Identification (CCITT F.200)
Ttx Teletex
Ttx-MS Teletex Mobile Station (i.e. a MS with Ttx terminal connected)
Ttx-TE Teletex Terminal Equipment
Tx Telex
VCS Virtual Circuit Service |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 3 Introduction | |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 3.1 Teletex service definition | The teletex (Ttx) service is an international telematic service as defined in CCITT F.200-series of recommendations.
As an essential characteristic it provides a basic level of compatibility between all terminals participating in the service.
Normally the service shall operate on a fully automatic basis and be open continuously.
Teletex subscriber equipment shall be in accordance with the CCITT recommendations T.60, T.61, T.62, and T.70. Especially it shall
a) have unique terminal identifications (TID);
b) be able to send and/or receive documents without terminal operator intervention;
c) have a certain set of indications to the terminal operator;
d) in principle be able to accept calls continuously, if call numbers are published in the directories (In order to meet this requirement, it is allowed to use a document storage facility which can be network or customer premises based.);
e) be able to prepare documents being forwarded to the telex service using appropriate conversion facilities within the network.
According to the CCITT T.70 (version 1988) the teletex service may be offered in the following types of networks:
a) the Circuit Switched Public Data Network (CSPDN);
b) the Packet Switched Public Data Network (PSPDN);
c) the Public Switched Telephone Network (PSTN); and
d) the Integrated Services Digital Network (ISDN).
The interworking between the different networks may be based on CCITT X.300-series of recommendations. |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 3.2 Context for the Support of Teletex in a GSM PLMN | Considering that
a) international roaming of teletex subscribers must be supported;
b) all CEPT countries have PSPDNs;
c) PSPDNs providing an access unit AU (X.31 case A) support procedures according to CCITT X.32;
d) each CEPT country will have an ISDN;
e) ISDNs may provide the VCS;
f) the teletex service supported by a GSM PLMN can participate in the internationally available teletex service, i.e. all teletex terminals, for which a call number is published in the service directory, can communicate with each other.
the following basic assumptions will apply:
a) In principle no specific network interworking functions shall be necessary in a VPLMN for the support of teletex.
b) No specific additional bearer service other than those defined in GSM 02.02 shall be needed in a VPLMN.
c) Ttx specific IWFs, if any, must not have any impact on the MS of a roaming subscriber.
d) Both PSTN and ISDN, if available, may be used as a transit network to the PSPDN.
e) Presently no service interworking (especially for telex) directly from the GSM PLMN is provided. Conversion facilities within the fixed networks shall be used.
NOTE: A mobile terminated call may be forwarded to a document storage facility called Teletex Document Store (TDS), if available, when the addressed Ttx-MS is temporarily unable to accept a call. The provision and the location of such a store is at the PLMN operator's discretion (e.g. within the PLMN or within a fixed network). |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 3.3 Reference Configuration of a Teletex Mobile Station | The reference configuration (figure 1/GSM 03.44) is equivalent to those configurations in GSM 07.03.
An explicit TA may be used between the R- and the S-interface reference point.
The configuration TE1-MT1 can only be supported by means of a specialized TAF including protocol conversion, if necessary, to guarantee the compatibility at the radio interface. For the time being this may be a national option.
Further configurations may be possible.
X.25
(X.21, X.21bis
V-series)
Figure 1/GSM 03.44: Reference Configuration of a Teletex Mobile Station |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 4 Interworking for Teletex Support | |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 4.1 Global Network Configuration for Teletex | Presently teletex is offered in the CSPDN, the PSPDN, the PSTN, and in the very next future in the ISDN. Figure 2/GSM TS 03.44 shows the different networks to which a GSM PLMN may have to interwork, when supporting the communication between teletex terminals.
*) This interworking requires a Ttx-specific IWF within the PLMN (see section 4.2)
Figure 2/GSM 03.44: Global Network Configuration
For service interworking with telex the national fixed network based Ttx/Tx conversion facility (CF) shall be used. For roaming subscribers this results in an international access. Whether the conversion facilities are prepared to receive such calls is not in the scope of the present document. |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 4.2 Network Interworking Scenarios | The following network interworking scenarios may be derived from the global network configuration. Some scenarios allow for different implementations of an IWF. For the interworking functions needed between the PLMN and the different networks refer to GSM TS 09.06 and 09.07. The choice of interworking scenario and the IWF is at the PLMN operator's discretion.
The PLMN and the particular PDN may be connected directly or via (a) transit network(s).
1) Direct interworking PLMN to PSPDN
2) Interworking PLMN to PSPDN via ISDN
3) Interworking PLMN to PSPDN via PSTN
4) Interworking PLMN to PSPDN via ISDN/PSTN
5) Direct interworking PLMN to CSPDN with protocol conversion
NOTE: This is a national option, because specific functionality in the IWF is needed .
6) Interworking PLMN to CSPDN via ISDN with protocol conversion
NOTE: This is a national option, because specific functionality in the IWF is needed .
7) Direct interworking PLMN to ISDN with protocol conversion
NOTE: Presently this interworking case applies only to the Ttx service within an ISDN using T.70-CSPDN protocols.
Figure 3/GSM 03.44: Network Interworking Scenarios
For the interworking PLMN to the different networks the following GSM specifications apply:
PLMN to CSPDN: GSM 09.04
PLMN to PSPDN: GSM 09.06
PLMN to PSTN/ISDN: GSM 09.07 |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 4.3 Mobile-to-mobile Communication | A communication from a mobile to another mobile is treated like a call from/to a fixed network subscriber, e.g. using the packet functions as per GSM 09.06. |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 4.4 Use of GSM Supplementary Services | For supplementary services refer to GSM 09.06 and GSM 09.04.In addition Call forwarding supplementary services may be used to forward a mobile terminated call to a TDS (refer annex). |
9462d069b1108ea61cac6d50d7aa61a9 | 03.44 | 4.5 High Layer Compatibility Information Element | Mobile subscribers using the teletex service may code the high layer compatibility information element as described below. Depending on the network implementation this indication may be used by the network for teletex specific requirements.
Depending on the signalling capabilities of the fixed network the high layer compatibility information element may not be included in the call setup message to the MS in case of a mobile terminated call. Therefore a Ttx-MS shall not reject an incoming call due to the absence of this element.
Table 1/GSM 03.44: High layer compatibility information element for teletex
High layer characteristics
Identification
Teletex (basic teletex)
Document application profile
for formatted mixed mode *)
Document application profile
for processable mode *)
*) for future use
Annex A (informative):
Teletex Document Store (TDS)
A.1 Introduction
A TDS is an optional functional unit, the provision of which is necessary, if the PLMN operator wishes that mobile terminated calls should not fail due to temporary absence of a Ttx-MS. A particular TDS can be in charge of one or more PLMNs. Each PLMN is the HPLMN of the Ttx-MSs, that TDS is acting for.
The provision and location of a TDS is at the PLMN operator's discretion (e.g. within the HPLMN or within a fixed network).
It is not intended to receive documents instead of the Ttx terminal in general, but only occasionally, if the MS does not accept a call. This may include e.g. temporary user initiated unconditional call forwarding.
Whether use of unconditional call forwarding is required in general, when the Ttx-MS is roaming in a another GSM PLMN, depends e.g. on the signalling capabilities of the concerned networks.
Some requirements can be identified from the user point of view either being a subscriber to a PLMN or to a fixed network.
These requirements are that a TDS must
a) be able to receive and store documents for a Ttx terminal (subscriber) it is in charge for;
b) act instead of the terminal as being the terminal itself (negotiation of options), especially there must not be any unacceptable impact on the remote fixed network based Ttx terminal which forces the user of that terminal to change his/her communication habits;
c) to be responsible for the delivery of the documents to the terminal it is in charge for.
A minimum set of functions is necessary to fulfil the requirements. To perform those functions, however, a TDS can be e.g. a separate stand-alone system or part of a Message Handling System MHS (based on X.400- and/or T.300-series of CCITT recommendations).
Once a document has been received and is stored in the document store the way to access and/or retrieve the document is not in the scope of the present document. However, it should be noted that usually a Ttx terminal can only make use of the teletex protocols. During the process of receiving documents from another Ttx terminal located in a PLMN or in a fixed network the TDS has to behave like a Ttx terminal anyway (see also requirements above).
A.2 Minimum Set of Functions
The following function must be allocated to a TDS:
- Ttx document reception;
- Ttx document storage capability (document store);
- either automatic forwarding Ttx documents to the Ttx-TE (subscriber) or document retrieval by the authorized Ttx-TE;
- operation and maintenance facilities.
A.3 Receiving Teletex Documents into the Document Store
The Ttx document reception function of the TDS may be accessed e.g. using call forwarding facilities of the connected network. These facilities, if used, are activated by the network, whenever there is a match with the associated conditions, e.g. the addressed Ttx-TE in the PLMN does not answer the mobile terminated call. The address of the TDS must therefore be known to the network as forwarded-to address.
A.4 Getting Teletex Documents from the Document Store
The way of having access to the received documents and the detailed procedures are outside of the scope of the present document.
Annex B (informative):
Change Request History
Change history
SMG No.
TDoc. No.
CR. No.
Section affected
New version
Subject/Comments
SMG#07
4.0.1
ETSI Publication
SMG#20
5.0.0
Release 1996 version
SMG#27
6.0.0
Release 1997 version
SMG#29
7.0.0
Release 1998 version
History
Document history
V7.0.0
August 1999
Publication |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 1 Scope | This European Telecommunication Standard (ETS) defines the GSM Application Programming Interface (GSM‑API) in two parts.
The first part describes, how compatibility to existing application interface ETS 300 838 [14] is covered for the GSM network. So existing PCI applications are able to be used in a GSM environment. For these applications the necessary mapping and local knowledge between application interface and network is described. The only modifications needed in ETS 300 838 [14] to fulfil this requirements are covered by changes of the parameter description. These changes of parameters are defined in clauses 4 and 5 of this ETS.
An application compliant with this ETS shall not imply compliance with ETS 300 838 (HPCI).
Clause 4 is meant to replace subclause 5.7 message parameters of ETS 300 838 [14]. which defines the parameters of the profile A of the HPCI.
NOTE 1: Clause 4is for further study.
Clause 5 replaces subclause 6.8 parameter description of ETS 300 838, which defines the parameters of the profile B of the HPCI.
The second part defines GSM specific features. New GSM‑API applications need extensions to ETS 300 838 [14] which are defined in section 6 and 7of this ETS.
These sections are meant as an addition to ETS 300 838 [14]. They do not replace any clause of ETS 300 838 [14].
Clause 6 defines the extensions according to the profile A of ETS 300 838 [14].
NOTE 2: Clause 6 is for further study.
Clause 7 defines the extensions according to the profile B of ETS 300 838 [14] (bit compatible to COMMON ISDN API).
The messages and the operating system dependent part of ETS 300 838 [14] will not be changed for GSM‑API. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 2 Normative references | This ETS incorporates by dated and undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this ETS only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies.
[1] GSM 01.04 (ETR 350): "Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms".
[2] GSM 02.04 (ETS 300 918): "Digital cellular telecommunications system (Phase 2+); General on supplementary services".
[3] GSM 02.30 (ETS 300 907): "Digital cellular telecommunications system (Phase 2+); Man‑Machine Interface (MMI) of the Mobile Station (MS)".
[4] GSM 03.38 (ETS 300 900): "Digital cellular telecommunications system (Phase 2+); Alphabets and language‑specific information".
[5] GSM 03.40 (ETS 300 901): "Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS) Point to Point (PP)".
[6] GSM 03.41 (ETS 300 902): "Digital cellular telecommunications system (Phase 2+); Technical realization of Short Message Service Cell Broadcast (SMSCB)".
[7] GSM 04.08 (ETS 300 940): "Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer 3 specification".
[8] GSM 04.11 (ETS 300 942): "Digital cellular telecommunications system (Phase 2+); Point‑to‑Point (PP) Short Message Service (SMS) support on mobile radio interface".
[9] GSM 04.80 (ETS 300 950): "Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer 3 supplementary services specification Formats and coding".
[10] GSM 04.90 (ETS 300 957): "Digital cellular telecommunications system; Unstructured supplementary services operation ‑ Stage 3".
[11] GSM 05.08 (ETS 300 911): "Digital cellular telecommunications system (Phase 2+); Radiosubsystem link control".
[12] GSM 09.02 (ETS 300 974): "Digital cellular telecommunications system (Phase 2+); Mobile Application Part (MAP) specification".
[13] GSM 11.11 (ETS 300 977): "Digital cellular telecommunications system (Phase 2+); Specification of the Subscriber Identity Module ‑ Mobile Equipment (SIM ‑ ME) interface".
[14] ETS 300 383 (1997): "Integrated Services Digital Network (ISDN); Harmonized Programmable Communication Interface (HPCI) for ISDN".
[15] ETS 300‑102‑1 (1990): "Integrated Services Digital Network (ISDN), Usernetwork interface layer 3, Specifications for basic call control".
[16] ITU‑T Recommendation Q931 (1993): "Digital subscriber Signalling System No. one (DSS1) ‑ ISDN user network interface layer 3 specification for basic call control".
[17] ISO 7776 (1986): "Information Processing systems; Data communications; High‑level data link control procedures: Description of the X.25 LAPD compatible DTE data link procedures".
[18] IBM publication: "IBM Synchronous Data Link Control Concepts" (GA27‑3093).
[19] ITU‑T Recommendation Q921 (1993): "ISDN user network interface ‑ Data link layer specification".
[20] ITU‑T Recommendation T.30 (1993): "Procedures for document facsimile transmission in the general switched telephone Network".
[21] Request For Comment (RFC) 1661: "The Point‑to‑Point Protocol (PPP)".
[22] Request For Comment (RFC) 1618: "PPP over ISDN".
[23] CCITT Recommendation T.90 (1992): "Characteristics and protocols for terminals for telematic services in ISDN".
[24] ISO 8208 (1990): "Information technology: Data communications; X.25 Packet Layer Protocol for Data Terminal Equipment".
[25] ITU‑T Recommendation X.213 (1992): "Information technology ‑ Network service definition for Open Systems".
[26] ITU‑T Recommendation X.400: "Reference model open System interconnection for CCITT applications".
[27] ITU‑T Recommendation X.200: "Message handling system and service overview".
[28] ETS 300 097 (1992): "Integrated Services Digital Network (ISDN), Connected Line Identification Presentation (COLP) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol part 1; Protocol implementation description". |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 3 Definitions and abbreviations | |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 3.1 Definitions | For the purposes of this ETS, the following definitions and those given in ETS 300 838 [14] apply:
Invalidate SIM File This is a procedure to change the availability of a SIM file. With the invalidate function, the corresponding file will no longer be available. See GSM 11.11 [13].
Rehabilitate SIM File This function will make a SIM file available for an application. See GSM 11.11 [13].
RP cause This is an error cause used in the GSM Short Messages Service at the SMR (Short Message Relay) layer. All causes are listed in GSM 04.11 [16]. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 3.2 Abbreviations | For the purpose of this ETS, the following abbreviations apply:
API Application Programming Interface
ASN1 Abstract Syntax Notation Number 1. This notation is used in different GSM services.
CAPI COMMON‑ISDN‑API
CBS Cell Broadcast Service. It is a specific GSM service used to broadcast messages to all subscribers. See GSM 03.41 [6].
DCS Data Coding Scheme. It defines an alphabet and/or a class and/or a language for a message. It is used for the SMS and the CBS. See GSM 03.38 [4].
DTMF Dual Tone Multi Frequency.
GSM‑API GSM Application Programming Interface.
HPCI Harmonized Programmable Communication Interface
MI Message Identifier. Each page of a CBS message is identified by a MI.
PIN Code Personal Identification Number. See GSM 11.11 [13].
PLMN Public Land Mobile Network.
PPP Point to Point Protocol.
RLP Radio Link Protocol.
SC Service Centre. It is the network element which handle the SMS messages. SeeGSM 03.40 [5].
SIM Subscriber Identity Module. See GSM 11.11 [13] for a full description of the SIM files.
SMS Short Message Service. It is a specific GSM service used to send point to point short messages. See GSM 03.40 [5] for a complete description.
SMS Command It is a TPDU initiated from a mobile station which invoke an operation in the service centre. See GSM 03.40 [5].
SS Supplementary Services. All GSM supplementary services are defined in GSM 02.04 [2].
TPDU Transfer Protocol Data Unit. It is used in the Short Messages Service. See GSM 03.40 [5]. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 4 Profile A compatible part of GSM‑API | (replaces subclause 5.7 of ETS 300 838 [14]).
For further study. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5 Profile B compatible part of GSM‑API | (replaces subclause 6.8 of ETS 300 838 [14].) |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.1 Overview | This part of GSM‑API defines the parameter description which replaces subclause 6.8 of ETS 300 838 [14] (i.e. Parameter description of Profile B). This replacement is necessary to run existing COMMON‑ISDN‑API applications on a GSM network. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2 Parameter description | This subclause describes the parameters used in ETS 300 838 [14] profile B messages. Each parameter is listed with its type, possible values and reference to the messages in which the parameter appears.
Some parameter values are defined according to ETS 300 102‑1 [15], Q.931 [16] or GSM 04.08 [7] and 04.11 [8]. In that case there is no private Profile B coding for these parameters. These parameters are coded as Profile B structures starting with a length octet and the remainder of the parameter being coded as defined in ETS 300 102‑1 [15] / Q.931 [16] or GSM specifications from octet three onwards. References to the contents of a structure in this clause always use index 0 to identify the first octet of information, i.e. the octet following the length octet.
Parameters may not be omitted, instead an empty structure shall be used. An empty structure shall be coded as a single octet containing a value of 0.
Reserved structures shall be coded as empty structures. Reserved parameter values shall not be used by GSM‑API applications. In case of COMMON‑ISDN‑API applications using these reserved structures respective parameter values the behaviour of GSM‑API is described below.
Default values as described in the following subclause shall be implemented in Profile B. They need not be valid for external ISDN equipment; in that case the external equipment defines the default values for its usage.
Parameters may again contain parameters which are referred to as "sub parameters".
The GSM specific extensions of some of the ETS 300 838 [14] profile B parameters are mentioned in this subclause even if they are related to the GSM specific part in clause 7.
These values shall be used by either the application and the GSM‑API if and only if the application has asked for GSM support as described in the clause 7.3 of this ETS. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.1 Additional Info | Additional Info (struct)
The purpose of the parameter additional info is to exchange signalling protocol specific information of the network. Depending on the signalling protocol only relevant elements of this structure shall be used (e.g. the B channel information has to be ignored in the message DISCONNECT_REQ).
The parameter has the following structure:
struct B channel information;
struct reserved, shall be ignored;
struct User user data (coded according to ETS 300 102‑1 [15] / Q.931 [16]);
struct reserved, shall be ignored.
This information element appears in:
ALERT_REQ
CONNECT_REQ
CONNECT_IND
CONNECT_RESP
DISCONNECT_REQ
INFO_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.2 B Channel Information | B Channel Information (struct)
The purpose of the sub parameter B channel information is to choose between B channel data exchange, D channel data exchange or pure user‑user data exchange. If this struct is empty the default value is assumed.
This sub parameter is coded as a structure, to give an easy way of extending its contents in future changes. At the moment, it is coded as a structure of two bytes length and has one element:
word Channel:
0 use B channel (default value);
1 reserved, shall be rejected;
2 reserved, shall be rejected.
This sub parameter appears in parameter:
Additional information. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.3 B Protocol | B Protocol (struct)
The purpose of the parameter B protocol is to select and configure the B channel protocols. There is a protocol identifier and configuration information for each layer. If this struct is empty the default value is assumed.
The parameter has the following structure:
word B1 protocol : Physical layer and framing;
word B2 protocol : Data link layer;
word B3 protocol : Network layer;
struct reserved, shall be ignored;
struct B2 configuration : Data link layer parameter;
struct B3 configuration : Network layer parameter;
This information element appears in:
CONNECT_REQ
CONNECT_RESP
SELECT_B_PROTOCOL_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.4 B1 Protocol | B1 Protocol (word)
The purpose of the sub parameter B1 protocol is to specify the physical layer and framing used for this connection. In GSM‑API following transfer modes shall be supported by the mobile station:
The following values are defined: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.5 B2 Protocol | B2 Protocol (word)
The purpose of the sub parameter B2 protocol is to specify the data link layer used for this connection.
The following values are defined:
0 ISO 7776 [17] (X.75 SLP) This is the default B2 protocol; |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.6 B3 Protocol | B3 Protocol (word)
The purpose of the sub parameter B3 protocol is to specify the network layer used for this connection.
The following values are defined: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.7 B1 Configuration | B1 Configuration (struct)
reserved, shall be ignored
This sub parameter appears in parameter:
B protocol |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.8 B2 Configuration | B2 Configuration (struct)
The purpose of the sub parameter B2 configuration is to offer additional configuration information for B2 protocol. It is only used for B2 protocols 0, 2 and 3. The parameter has the following structure:
byte
Address A
This parameter has different meaning and default values depending on the selected B2 protocol:
### B2 protocol 0: link Address A, default is 0x03
### B2 protocol 2: link Address, default is 0xC1
### B2 protocol 3: bit 0: ´0´ ‑ automatic TEI assignment procedure shall be used. ´1´ ‑ the TEI value shall be used as fixed TEI. In this case Bit 7 ‑ Bit 1: TEI value
byte
Address B
This parameter has different meaning and default values depending on the selected B2 protocol:
### B2 protocol 0: link Address B, default is 0x01
### B2 protocol 2: not applicable
### B2 protocol 3: not applicable
byte
Modulo Mode
Mode of operation:
### 8 ‑ normal operation (Default)
### 128 ‑ extended operation
byte
Window Size
Window size, default is 7.
struct
XID
This parameter has different meaning and default values depending on the selected B2 protocol:
### B2 protocol 0: not applicable
### B2 protocol 2: this is the content of the XID response which is sent when a XID command is received.
### B2 protocol 3: not applicable
This sub parameter appears in parameter:
B protocol |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.9 B3 Configuration | B3 Configuration (struct)
The purpose of the sub parameter B3 configuration is to offer additional configuration information for B3 protocol. Different structures of this parameter are defined, depending on the B3 protocol:
For B3 protocols 0 (transparent) this parameter does not apply (coded as an empty structure).
For B3 protocols 1, 2 and 3 (T.90NL, ISO8208, X.25 DCE) the following structure is defined:
word
LIC
Lowest incoming channel, default is 0
word
HIC
Highest incoming channel, default is 0
word
LTC
Lowest two‑way channel, default is 1
word
HTC
Highest two‑way channel, default is 1
word
LOC
Lowest outgoing channel, default is 0
word
HOC
Highest outgoing channel, default is 0
word
Modulo Mode
Mode of operation:
### 8 ‑ normal operation (default)
### 128 ‑ extended operation
word
Window Size
Used to configure non‑standard defaults for the transmit and receive window size, default is 2
For B3 protocol 4 (Fax G3) the following structure is used:
word
resolution
0: standard
1: high
word
format
0: SFF (Default, description in annex B)
1: Plain FAX Format (modified Huffman coding)
2: PCX
3: DCX
4: TIFF
5: ASCII
6: Extended ANSI
7: Binary‑File transfer
struct
station id
ID of the calling station. Coded in ASCII
struct
head line
Headline sent on each fax page. Coded in ASCII
This sub parameter appears in parameter:
B protocol
5.2.10 BC
BC (struct)
reserved, shall be ignored
This information element appears in:
CONNECT_IND
CONNECT_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.11 Called Party Number | Called Party Number (struct)
The purpose of the parameter called party number information element is to identify the called party of a call. The information element is coded according to ETS 300 102‑1 [15] / Q.931 [16].
Byte 0
Type of number and numbering plan identification (byte 3 of the called party number information element, see ETS 300 102 [15]).
At the calling side the value supplied by the application shall be transmitted over the network, 0x80 is the suggested default value.
At the called side the value received from the network shall be passed to the application.
Bytes 1..n
Number digits of the called party number information element.
This information element appears in:
CONNECT_IND
CONNECT_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.12 Called Party Subaddress | Called Party Subaddress (struct)
The purpose of the parameter called party subaddress is to identify the subaddress of the called party of a call. The information element is coded according to ETS 300 102‑1 [15] / Q.931 [16].
Byte 0
Type of subaddress
At the calling side the value supplied by application shall be transmitted over the network, 0x80 is the suggested default value (NSAP according X.213 [25]). In this case, the first subaddress information octet should have the value 0x50.
At the called side, the value received from the network shall be passed to the application.
Bytes 1..n
Contents of the called party subaddress information element.
This information element appears in:
CONNECT_REQ
CONNECT_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.13 Calling Party Number | Calling Party Number (struct)
reserved, shall be ignored.
This information element appears in:
CONNECT_REQ
CONNECT_IND
LISTEN_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.14 Calling Party Subaddress | Calling Party Subaddress (struct)
The purpose of the parameter calling party subaddress information element is to identify a subaddress associated with the origin of a call. The information element is coded according to ETS 300 102‑1 [15] / Q.931 [16].
Byte 0
Type of subaddress
At the calling side the value supplied by application shall be transmitted over the network, 0x80 is the suggested default value (NSAP according X.213 [25]). In this case, the first subaddress information octet should have the value 0x50.
At the called side, the value received from the network shall be passed to the application.
Bytes 1..n
Contents of the calling party subaddress information element.
This information element appears in:
CONNECT_IND
CONNECT_REQ
LISTEN_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.15 CIP Value | CIP Value (word)
The purpose of parameter CIP Value is to identify a complete profile of compatibility information (Bearer Capability, Low Layer Compatibility and High Layer Compatibility). With this parameter standard applications are not required to do complex coding and decoding of the above mentioned information elements.
Some of the CIP values only define a Bearer Capability (CIP 1 to 9) and some values define a combination of Bearer Capability and High Layer Compatibility (CIP 16 to 34). A Low Layer Compatibility information element is not defined with the CIP. The Low Layer Compatibility information element may be provided by the application if necessary. The following CIP values are defined:
CIP value
Service
Relation to call
0
no predefined profile
1
Speech
voice call
2
unrestricted digital information
UDI call using RLP(see note)
3
restricted digital information
UDI call using RLP(see note)
4
3,1 kHz audio
voice call
5
7 kHz audio
reserved, shall be rejected
6
video
reserved, shall be rejected
7
packet mode
reserved, shall be rejected
8
56 kBit/s rate adaptation
UDI call using RLP(see note)
9
unrestricted digital information with tones/announcements
reserved, shall be rejected
10..15
reserved
16
Telephony
Bearer Capability according to CIP 1.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification: Telephony
Coding of HLC:
<0x7D, 0x02, 0x91, 0x81>
17
Facsimile Group 2/3
fax G3 call
18
Facsimile Group 4 Class 1
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification: Facsimile Group 4 Class 1
Coding of HLC:
<0x7D, 0x02, 0x91, 0xA1>
19
Teletex service basic and mixed mode and facsimile service Group 4 Classes II and III
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification. Teletex service and facsimile service Group 4
Coding of HLC:
<0x7D, 0x02, 0x91, 0xA4>
(continued)
(continued)
CIP value
Service
Relation to call
20
Teletex service basic and processable mode
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification. Teletex service basic and processable mode
Coding of HLC:
<0x7D, 0x02, 0x91, 0xA8>
21
Teletex service basic mode
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification. Teletex service basic mode
Coding of HLC:
<0x7D, 0x02, 0x91, 0xB1>
22
International inter working for Videotex
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification. International inter working for Videotex
Coding of HLC:
<0x7D, 0x02, 0x91, 0xB2>
23
Telex
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification: Telex
Coding of HLC:
<0x7D, 0x02, 0x91, 0xB5>
24
Message Handling Systems according to X.400 [26]
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification: Message Handling Systems according X.400
Coding of HLC:
<0x7D, 0x02, 0x91, 0xB8>
(continued)
(concluded)
CIP value
Service
Relation to call
25
OSI application according to X.200 [27]
Bearer Capability according to CIP 2.
High Layer Compatibility:
coding standard: CCITT
interpretation: First characteristics identification is to be used
Presentation: High layer protocol profile
High layer characteristics identification: OSI application according X.200
Coding of HLC:
<0x7D, 0x02, 0x91, 0xC1>
26
7 kHz Telephony
reserved, shall be rejected
27
Video Telephony, first connection
reserved, shall be rejected
28
Video Telephony, second connection
reserved, shall be rejected
32
Modem
modem call 8 data bits, no parity, 1 stop bit. Used only, if GSM services are requested.
33
Modem
modem call 7 data bits, even parity, 1 stop bit. Used only, if GSM services are requested.
34
In Call modification TS.61
use of In Call modification (TS.61 only). Used only, if GSM services are requested.
NOTE: RLP can be disabled by manufacturer specific mechanism. User rate and other subscription dependent parameter are manufacturer dependent and not part of GSM‑API. They should be configurable by manufacturer specific mechanism.
This information element appears in:
CONNECT_REQ
CONNECT_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.16 CIP mask | CIP mask (dword)
The purpose of the parameter CIP mask is to select basic classes of incoming calls. The bit position within this mask identifies the related CIP value. When an incoming call is received, Profile B tries to match this incoming call to the defined CIP values (more than one value may match). A CONNECT_IND message is sent to the application when the bit position within the CIP mask of any matching CIP value is set to "1". The CIP value in the CONNECT_IND message is set to the highest matching CIP value.
The following rules are defined to find matching CIPs:
1) CIP values which define a Bearer Capability only (CIP 1 to CIP 9) shall generate a match with any incoming call which includes a Bearer Capability with the same information. Additional information included in the Bearer Capability information element shall be ignored. The match shall be generated regardless of any Low Layer Compatibility or High Layer Compatibility received.
2) CIP values which define a Bearer Capability and a High Layer Compatibility (CIP 16 to CIP 28) shall generate a match with any incoming call which includes a Bearer Capability and a High Layer Compatibility with the same identical information. The match shall be generated regardless of any Low Layer Compatibility received.
Bit 0 in the CIP mask has a special meaning. When no other matching bit is set in the CIP mask but the Bit 0, a CONNECT_IND is sent to the application with a CIP value of 0. In this case the application may evaluate the parameters Bearer Capability, Low Layer Compatibility and High Layer Compatibility to decide whether it is compatible to the call or not. Examples:
Service
Bits to be set in the CIP mask
Telephony Application
1 For calls within ISDN from equipment which does not send High Layer Compatibility info. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.17 Connected Number | Connected Number (struct)
The purpose of the parameter connected number information element is to indicate which number is connected to a call. The information element shall be coded according to ETS 300 097 [28].
Byte 0
Type of number and numbering plan identification (byte 3 of the connected number information element, see ETS 300 097 [28]).
In the direction application to Profile B, the value supplied by the application shall be transmitted over the network, 0x00 is the suggested default value.
In the direction Profile B to application, the value received from the network shall be passed to the application. The extension bit shall always be cleared.
Byte 1
Presentation and screening indicator (byte 3a of the connected number information element).
In the direction application to Profile B, the value supplied by the application shall be transmitted over the network, 0x80 is the suggested default value.
In the direction Profile B to application, the value received from the network shall be passed to the application. If this byte was not transmitted over the network, the controller provides the value 0x80 (user provided, not screened).
Bytes 2..n
Number digits of the connected number information element.
This information element appears in:
CONNECT_ACTIVE_IND
CONNECT_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.18 Connected Subaddress | Connected Subaddress (struct)
The purpose of the parameter connected subaddress information element is to identify the subaddress of the connected user of a call. The information element is coded according to ETS 300 097 [28].
Byte 0
Type of subaddress
At the calling side the value supplied by application shall be transmitted over the network, 0x80 is the suggested default value (NSAP according X.213 [25]). In this case, the first subaddress information octet should have the value 0x50.
At the called side, the value received from the network shall be passed to the application.
Bytes 1..n
Contents of the connected subaddress information element.
This information element appears in:
CONNECT_ACTIVE_IND
CONNECT_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.19 Controller | Controller (dword)
The purpose of the parameter controller is to address a hardware unit, that gives access to an ISDN at the application's disposal. A controller supports none, one or several physical and logical connections. The parameter controller is a dword (to be compatible in size with PLCI and NCCI) with the range from 1 to 127 (0 reserved). Bit 7 additionally contains the information, if the message is used for internal (0) or external (1) equipment. Controllers are numbered sequentially and can be designed to handle external equipment additional to internal functionality or exclusively provide access to external equipment. External equipment e.g. is a handset.
Definition of external equipment behaviour, e.g. B channel handling, is not covered by Profile B.
Format for controller:
0
0
0
Ext./Int.
Controller
31
16
8
7
6 0
This information element appears in:
CONNECT_REQ
FACILITY_REQ
FACILITY_CONF
FACILITY_IND
FACILITY_RESP
LISTEN_REQ
LISTEN_CONF
MANUFACTURER_REQ
MANUFACTURER_CONF
MANUFACTURER_IND
MANUFACTURER_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.20 Data | Data (dword)
The purpose of the parameter data is to exchange a 32 bit pointer to the data area containing the information.
This information element appears in:
DATA_B3_REQ
DATA_B3_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.21 Data Length | Data Length (word)
The purpose of the parameter data length is to specify the length of the data.
This information element appears in:
DATA_B3_REQ
DATA_B3_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.22 Data Handle | Data Handle (word)
The purpose of the parameter data handle is to identify the data area in data exchange messages.
This information element appears in:
DATA_B3_REQ
DATA_B3_CONF
DATA_B3_IND
DATA_B3_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.23 Facility Selector | Facility Selector (word)
The purpose of the parameter facility selector is to identify the requested Profile B facility.
The defined values are:
0 reserved, shall be rejected; |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.24 Facility Request Parameter | Facility Request Parameter (struct)
The purpose of the parameter facility request parameter is to offer additional information concerning the message FACILITY_REQ.
This parameter is coded depending on facility selector as a structure with following elements:
Facility selector: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.25 Facility Confirmation Parameter | Facility Confirmation Parameter (struct)
The purpose of the parameter facility confirmation parameter is to offer additional information concerning the message FACILITY_CONF.
This parameter is coded depending on facility selector as a structure with following elements:
Facility selector: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.26 Facility Indication Parameter | Facility Indication Parameter (struct)
The purpose of the parameter facility indication parameter is to offer additional information concerning the message FACILITY_IND.
This parameter is coded depending on facility selector as a structure with following elements:
Facility selector:
0 reserved |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.27 Facility Response Parameter | Facility Response Parameter (struct)
The purpose of the parameter facility respond parameter is to offer additional information concerning the message FACILITY_RESP.
This parameter is coded depending on facility selector as a structure with following elements:
Facility selector: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.28 Flags | Flags (word)
The purpose of the parameter flags is to exchange additional protocol dependent information about the data.
Bit 0
qualifier bit
Bit 1
more data bit
Bit 2
delivery confirmation bit
Bit 3
expedited data bit
Bit 15
framing error bit, data may be invalid (only with corresponding B2 protocol)
This information element appears in:
DATA_B3_REQ
DATA_B3_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.29 HLC | HLC (struct)
reserved, shall be ignored
This information element appears in:
CONNECT_IND
CONNECT_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.30 Info | Info (word)
The purpose of the parameter info is to provide error information to the application. For each error which can be detected by the controller a unique code is defined, independent from the context of the error.
Profile B shall not generate other information values as defined below. In case of future extension of possible information values however an application should interpret any information value except class 0x00xx as an indication that the corresponding request was rejected from Profile B. Class 0x00xx indicates the successful handling of the corresponding request and returns additional information.
class 0x00xx: informative values (corresponding message was processed)
Value
Reason
0
request accepted
0x0001
NCPI not supported by current protocol, NCPI ignored
0x0002
flags not supported by current protocol, flags ignored
0x0003
alert already sent by another application
class 0x10xx: error information concerning CAPI_REGISTER
Value
Reason
0x1001
too many applications
0x1002
logical block size too small, shall be at least 128 bytes
0x1003
buffer exceeds 64 kByte
0x1004
message buffer size too small, shall be at least 1 024 bytes
0x1005
max. number of logical connections not supported
0x1006
reserved
0x1007
the message could not be accepted because of an internal busy condition
0x1008
OS Resource error (e.g. no memory)
0x1009
GSM‑API not installed
0x100A
Controller does not support external equipment
0x100B
Controller does only support external equipment
class 0x11xx: error information concerning message exchange functions
Value
Reason
0x1101
illegal application number
0x1102
illegal command or subcommand or message length less than 12 octets
0x1103
the message could not be accepted because of a queue full condition. The error code does not imply that Profile B cannot receive messages directed to another controller, PLCI or NCCI.
0x1104
queue is empty
0x1105
queue overflow, a message was lost. This indicates a configuration error. The only recovery from this error is to perform a CAPI_RELEASE.
0x1106
unknown notification parameter
0x1107
the message could not be accepted because of an internal busy condition
0x1108
OS Resource error (e.g. no memory)
0x1109
GSM‑API not installed
0x110A
Controller does not support external equipment
0x110B
Controller does only support external equipment
class 0x20xx: error information concerning resource / coding problems
Value
Reason
0x2001
message not supported in current state
0x2002
illegal Controller/PLCI/NCCI
0x2003
out of PLCI
0x2004
out of NCCI
0x2005
out of LISTEN
0x2006
out of FAX resources (protocol T.30 [20])
0x2007
illegal message parameter coding
class 0x30xx: error information concerning requested services
Value
Reason
0x3001
B1 protocol not supported
0x3002
B2 protocol not supported
0x3003
B3 protocol not supported
0x3004
B1 protocol parameter not supported
0x3005
B2 protocol parameter not supported
0x3006
B3 protocol parameter not supported
0x3007
B protocol combination not supported
0x3008
NCPI not supported
0x3009
CIP Value unknown
0x300A
flags not supported (reserved bits)
0x300B
facility not supported
0x300C
data length not supported by current protocol
0x300D
reset procedure not supported by current protocol
This information element appears in:
ALERT_CONF
CONNECT_CONF
CONNECT_B3_CONF
DATA_B3_CONF
DISCONNECT_B3_CONF
DISCONNECT_CONF
FACILITY_CONF
INFO_CONF
LISTEN_CONF
MANUFACTURER_CONF
RESET_B3_CONF
SELECT_B_PROTOCOL_CONF |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.31 Info Element | Info Element (struct)
The purpose of the parameter info element depends on the value of the parameter info number.
If the info number specifies an information element, the info element contains that information element with the coding as defined in ETS 300 102‑1 [15] / Q.931 [16].
If the info number specifies a charging information info element contains a dword indicating the sum of charges accumulated by the network up to this moment.
If the info number specifies a message type the info element is an empty Profile B struct.
This information element appears in:
INFO_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.32 Info Mask | Info Mask (dword)
The parameter info mask specifies which type of information for a physical connection or controller shall be provided by Profile B. The selected information shall be indicated within the message INFO_IND to the application. A given info mask (set in LISTEN_REQ) is valid until it is superseded by another LISTEN_REQ and applies to all information concerning the corresponding application. The info mask is coded as a bit field. A bit set to 1 means that corresponding INFO_IND messages shall be generated, a bit set to 0 means the specified information shall be suppressed. In the default info mask all bits are set to 0. If an application wants to change this value it shall send a LISTEN_REQ message even if it does not want to be informed about incoming calls.
As described in subsequent chapters, the ASN1 decoding for GSM Supplementary Services is done below the GSM‑API. The facility information element is not presented on the interface and Bit 5 of the parameter info mask shall be reserved for ETS 300 838 [14] profile B.
Bit 0
Cause; cause information given by the net during disconnection. The parameter info element of the corresponding INFO_IND message is a Profile B struct which contains the cause information element defined in ETS 300 102‑1 [15] and Q.931 [16] (both 4.5.12).
Bit 1
Date/time; date/time information indicated by the net. The parameter info element of the corresponding INFO_IND message contains the date/time information element defined in ETS 300 102‑1 [15] and Q.931 [16] (both 4.6.1).
Bit 2
Display; display information to be displayed to the user. The parameter info element of the corresponding INFO_IND message contains the display information element defined in ETS 300 102‑1 [15] and Q.931 [16] (both 4.5.15).
Bit 3
User‑user; user‑user information that is transparently carried by the net. The parameter info element of the corresponding INFO_IND message contains the user‑user information element defined in ETS 300 102‑1 [15] and Q.931 [16] (both 4.5.29).
Bit 4
Call progression; information referring to the progress of the call. There are five different INFO_IND messages that correspond to this information type, each with a unique info number.
The first indication contains the information element progress indicator as defined in ETS 300 102‑1 [15] and Q.931 [16]. The other four messages indicate the occurrence of the network events SETUP ACKNOWLEDGE, CALL PROCEEDING, ALERTING and PROGRESS. In these cases the parameter info number indicates the corresponding message type and the info element is an empty Profile B struct.
Bit 5
Reserved, shall be set to 0.
Bit 6
Charging information; connection oriented charging information provided by the net. There are two different INFO_IND messages with unique info number values that correspond to this information type. The first one shows the sum of charging units indicated by the net up to this moment, the second the sum of charges in the national currency indicated by the net up to this moment. In both cases the parameter info element is coded as a Profile B struct containing a dword. It is highly recommended to provide only one of this two types of charging information to the user and to transform one type to the other. However, in some networks this might be impossible due to the information provided from the net. In these cases it is not defined, if the current charges are represented by only one or both or the sum of this indicated charges.
Bit 7
Called Party number; identifies the called party of a call. The parameter info element of the corresponding INFO_IND message contains the called party number information element defined in ETS 300 102‑1 [15] and Q.931 [16] (both 4.5.8).
Bits 7‑31
Reserved, shall be set to 0
This information element appears in:
LISTEN_REQ |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.33 Info Number | Info Number (word)
The purpose of the parameter info number specifies the coding of the parameter info element and the type of information which is carried by this INFO_IND message. The high byte is structured as a bit field and indicates which type of information is held in the low byte.
Bit 15
If this bit set to 1 the low byte contains a message type, if it is set to 0 the low byte represents an information element type.
Bits 14
If this bit is set to 1 the low byte indicates supplementary information not covered by network events or information elements. In this case bit 15 shall be set to 0.
Bits 13‑8
Reserved, set to 0.
If bit 15 is set, the low byte containing the message type is coded according to ETS 300 102‑1 [15] / Q.931 [16]. In this case the INFO_IND message indicates the occurrence of a network event according to the specified message and the parameter info element is an empty Profile B struct.
If bits 14 and 15 are cleared, the low byte represents an information element type coding according to ETS 300 102‑1 [15] / Q.931 [16]. The parameter info element contains the content of the information element.
If bit 14 is set, the low byte represents supplementary information. The defined values are:
0 sum of charges in charging units. In this case the parameter info element contains the content of the information element.
1 sum of charges in national currency. In this case the parameter info element contains the content of the information element.
This information element appears in:
INFO_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.34 LLC | LLC (struct)
The purpose of the parameter Low Layer Compatibility (LLC) information element is to provide a means which should be used for compatibility checking by an addressed entity (e.g. a remote user or an inter working unit or a high layer function network node addressed by the calling user). The Low Layer Compatibility information element is transferred transparently by ISDN between the call originating entity (e.g. the calling user) and the addressed entity. If Low Layer Compatibility negotiation is allowed by the network, the Low Layer Compatibility information element is also passed transparently from the addressed entity to the originating entity. The information element is coded according to ETS 300 102‑1 [15] / Q.931 [16].
This information element appears in:
CONNECT_ACTIVE_IND
CONNECT_IND
CONNECT_REQ
CONNECT_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.35 Manu ID | Manu ID (dword)
The purpose of the parameter Manu ID is to exchange a dword inside MANUFACTURER‑Messages which identifies the manufacturer. Every manufacturer offering MANUFACTURER‑Messages should choose a unique value (e.g. shortcut of company name).
This information element appears in:
MANUFACTURER_REQ
MANUFACTURER_RESP
MANUFACTURER_CONF
MANUFACTURER_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.36 Manufacturer Specific | Manufacturer Specific
The purpose of the parameter manufacturer Specific is to exchange manufacturer specific information.
This information element appears in:
MANUFACTURER_REQ
MANUFACTURER_RESP
MANUFACTURER_CONF
MANUFACTURER_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.37 NCCI | NCCI (dword)
The purpose of the parameter NCCI is to identify a logical connection. The NCCI is given by Profile B during creation of the logical connection. Depending on the layer 3 protocol selection (e.g. ISO 8208 [24]), it is possible to have multiple NCCIs based on one PLCI. The NCCI is a dword with a range from 1 to 65535 (0 reserved), coded as described below, and includes additionally the corresponding PLCI and controller.
Format for NCCI:
NCCI
PLCI
Ext./Int.
Controller
31
16
8
7
6 0
This information element appears in:
CONNECT_B3_ACTIVE_IND
CONNECT_B3_ACTIVE_RESP
CONNECT_B3_CONF
CONNECT_B3_IND
CONNECT_B3_RESP
DATA_B3_CONF
DATA_B3_IND
DATA_B3_REQ
DATA_B3_RESP
DISCONNECT_B3_CONF
DISCONNECT_B3_IND
DISCONNECT_B3_REQ
DISCONNECT_B3_RESP
FACILITY_REQ
FACILITY_CONF
FACILITY_IND
FACILITY_RESP
RESET_B3_CONF
RESET_B3_IND
RESET_B3_REQ
RESET_B3_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.38 NCPI | NCPI (struct)
The purpose of the parameter NCPI is to provide additional protocol specific information.
For the layer 3 protocols ISO 8208 [24] and X.25 the parameter data of structure NCPI are coded as follows:
Byte 0
Bit field
[0]: Enable the usage of the delivery confirmation procedure in call set‑up and data packets (D‑Bit).
[1..7]: Reserved.
Byte 1
Logical channel group number of the permanent virtual circuit (PVC) to be used. In the case of virtual calls (VC) this number shall be set to zero.
Byte 2
Logical channel number of the permanent virtual circuit (PVC) to be used. In the case of virtual calls (VC) this number shall be set to zero.
Bytes 3..n
Bytes following the packet type identifier field in the X.25 PLP packets.
For layer 3 protocol T.30 [20] (fax group 3) the parameter data of structure NCPI are valid only for DISCONNECT_B3_IND and coded as follows (in every other message the structure is empty):
word
Rate
actual used bit rate, coded as unsigned integer value
word
resolution
0: standard
1: high
word
format
0: SFF (Default, description in Annex A)
1: Plain FAX Format (modified Huffman coding)
2: PCX
3: DCX
4: TIFF
5: ASCII
6: Extended ANSI
7: Binary‑File transfer
word
pages
number of pages, coded as unsigned integer value
struct
receive id
id of remote side
This information element appears in:
CONNECT_B3_ACTIVE_IND
CONNECT_B3_T90_ACTIVE_IND
CONNECT_B3_IND
CONNECT_B3_REQ
CONNECT_B3_RESP
DISCONNECT_B3_IND
DISCONNECT_B3_REQ
RESET_B3_REQ
RESET_B3_RESP |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.39 PLCI | PLCI (dword)
The purpose of the parameter PLCI is to describe a physical connection between two endpoints. The PLCI is given by Profile B during creation of the physical connection. The PLCI is a dword with the range from 1 to 255 (0 reserved), coded as described below, and additionally includes the controller.
Format for PLCI:
0
0
PLCI
Ext./Int.
Controller
31
16
8
7
6 0
This information element appears in:
ALERT_REQ
ALERT_CONF
CONNECT_CONF
CONNECT_IND
CONNECT_RESP
CONNECT_ACTIVE_IND
CONNECT_ACTIVE_RESP
CONNECT_B3_REQ
DISCONNECT_REQ
DISCONNECT_CONF
DISCONNECT_IND
DISCONNECT_RESP
FACILITY_REQ
FACILITY_CONF
FACILITY_IND
FACILITY_RESP
INFO_REQ
INFO_CONF
INFO_IND
INFO_RESP
SELECT_B_PROTOCOL_REQ
SELECT_B_PROTOCOL_CONF |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.40 Reason | Reason (word)
The purpose of the parameter reason is to provide error information to the application regarding the clearing of a physical connection . The defined values are:
0 normal clearing, no cause available;
0x3301 protocol error layer 1;
0x3302 protocol error layer 2;
0x3303 protocol error layer 3;
0x3304 another application got that call (see LISTEN_REQ);
0x34xx disconnect cause from the network according to ETS 300 102‑1 [15] / Q.931 [16]. In the field "xx" the cause value received within a cause information element (octet 4) from the network is indicated;
0x8xxx GSM‑API specific reason. Used only, if GSM services are requested;
0x81xx GSM specific local reason;
0x8101 no radio coverage (no service possible);
0x82xx GSM reject cause from the network according to GSM 04.08 [7]. In the field "xx" the reject cause value received within a reject cause information element from the network is indicated;
0x83xx GSM cause from the network according to GSM 04,08 [7]. In the field "xx" the cause value received within a cause information element (octet 4) from the network is indicated;
0x84xx RP cause from the network according to GSM 04.11[8]. In the field "xx" the cause value received within a RP cause information element from the network is indicated.
This information element appears in:
DISCONNECT_IND |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.41 Reason_B3 | Reason_B3 (word)
The purpose of the parameter reason is to provide error information to the application regarding the clearing of a logical connection . The defined values are:
protocol independent:
0 normal clearing, no cause available;
0x3301 protocol error layer 1 (broken line or B channel removed by signalling protocol);
0x3302 protocol error layer 2;
0x3303 protocol error layer 3.
T.30 [20] specific reasons:
0x3311 connecting not successful (remote station is no fax G3 machine);
0x3312 connecting not successful (training error);
0x3313 disconnected before transfer (remote station does not support transfer mode, e.g. resolution);
0x3314 disconnected during transfer (remote abort);
0x3315 disconnected during transfer (remote procedure error (e.g. unsuccessful repetition of T.30 [20] commands);
0x3316 disconnected during transfer (local tx data underrun);
0x3317 disconnected during transfer (local rx data overflow);
0x3318 disconnected during transfer (local abort);
0x3319 illegal parameter coding (e.g. SFF coding error). |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 5.2.42 Reject | Reject (word)
The purpose of the parameter reject is to define the action of Profile B for incoming calls.
The defined values are |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 6 GSM specific part of GSM‑API (addition to ETS 300 838profile A) | For further study. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7 GSM specific part of GSM‑API (addition to ETS 300 838profile B) | |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.1 Overview | Clause 5 of this ETS contains the description of the part of GSM‑API, which is compatible to ETS 300 838 [14] Profile B (COMMON‑ISDN‑API). Following this approach, existing applications of this ETS are able to be used in a GSM environment.
However, to use GSM specific features new GSM‑API applications need extensions to ETS 300 838 [14] Profile B.
These extensions and how they are enabled is described in this subclause.
NOTE: This clause does not replace any clause of ETS 300 838 [14]. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.2 GSM specific functionality | The following GSM specific functionality is offered by GSM‑API:
Registration of GSM support:
Support of GSM Tele and Bearer Services:
‑ Modem (usage of modem of the Inter Working Function);
‑ Telephony;
‑ Alternate speech fax (TS 61);
‑ Emergency Calls.
Control of Short Message Service (SMS) and Cell Broadcast Service (CBS).
In Call Modification
Access to SIM functions and SIM Data (Telephone Book, Short Message Storage ...)
Security Functions of the SIM (Enter the Code of PIN (CHV1, CHV2 and unblocking Key))
Network Management (PLMN Management): Getting information of available Networks), setting the mode of registration to a network (automatic mode or manual registration on a selected PLMN)
Control of GSM Supplementary Services
GSM specific indications (RX level/quality, service state, SIM presence) |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.3 Extension mechanism | The extension of ETS 300 838 [14] profile B is done in two ways:
1) Some of the existing parameters of ETS 300 838 [14] profile B are extended by GSM specific values. These extensions are described in the subclause 5.1 of this ETS.
2) The FACILITY mechanism of ETS 300 838 [14] profile B will be used to extend this (ISDN‑) API to GSM‑API. The new facility selector 256 is introduced to extend Profile B and new functions are defined for this facility selector. Thus existing applications will be able to run on top of GSM networks, but can easily be enhanced to support new GSM‑API functionality. New GSM‑API applications can use the full advantage of GSM‑API based on ETS 300 838 [14] profile B (COMMON‑ISDN‑API).
The generic facility mechanism of ETS 300 838 [14] profile B consists of the messages FACILITY_REQ, FACILITY_CONF, FACILITY_IND and FACILITY_RESP. Each message includes a facility identifier called facility selector as well as function specific parameters. The message FACILITY_CONF includes additionally the parameter info.
Both, the new values and the new facility selector shall be used by either the application and the GSM‑API if and only if the application has asked for GSM support as described below. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.4 Registration of GSM support | A function for the FACILITY mechanism of ETS 300 838 [14] profile B is defined to register GSM support: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.4.1 Register GSM support facility message parameter | Register GSM support
The application uses this message to enable GSM functionality. The parameter "GSM Services" is a bit field, which is used to select the GSM services. If a GSM service is selected, the application has to be able to handle the asynchronous events, coming from the network side.
The following rules apply to this function:
1) If an application once has registered GSM support, there is no mechanism to de‑register the support except the application logs of from GSM‑API as defined in the operating system dependent part of ETS 300 838 [14] profile B.
2) The bit for the GSM service "SIM access" should be used, if the application is intended to work with the SIM card only. The radio part of the mobile may be enabled in this case to save power.
3) The GSM Service "SIM access" will automatically be supported when any of the other GSM services is requested
4) The GSM Services "Short Message Received Indication" and "Transfer of received Short Message to the application" are alternative. If both services are selected, the service "Transfer of received Short Message to the application" applies.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
1
GSM Service
word
Bit field, coding as follows:
[0]: enable "GSM calls"
[1]: enable "Short Message Received Indication"
[2]: enable "Transfer of received Short Message to the application"
[3]: enable "Cell Broadcast Service"
[4]: enable "GSM Supplementary Services"
[5]: enable "SIM access"
[6]: enable "Service State indication"
[7]: enable "SIM presence indication"
[8]: enable „Short Message Received Acknowledge“
[9 to 15]: reserved
The supported services are indicated with the bit field parameter GSM Services.
The parameter MS capabilities contains additional information about the MS capabilities.
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
1
GSM services
word
Bit field, coding as follows:
[0]: "GSM calls" are enabled
[1]: ""Short Message Received indication" is enabled
[2]: "Transfer of received Short Message to the application" is enabled
[3]: "Cell Broadcast Service" is enabled
[4]: "GSM Supplementary Services" are enabled
[5]: "SIM access" is enabled
[6]: "Service State indication" is enabled
[7]: "SIM Presence Indication" is enabled
[8]: „Short Message Received Acknowledge“ is enabled
[9 to 15]: reserved
MS capabilities
struct
This parameter contains the following subparameters:
word maximum length of the CBS message identifier list. This parameter is only valid, if the GSM support "enable Cell Broadcast service. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.5 Support of GSM Tele and Bearer Services | New CIP values are defined to handle the following tele/bearer services
- modem calls (control of the modem of the Inter Working Function);
- Support of Telephony;
- Support of TS 61(Alternate Speech Fax);
These new values are defined in subclause 5.1.1.4. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.5.1 Emergency Calls | According to GSM 02.30 [3], a GSM emergency call will be set up if the parameter Called Party Number of the CONNECT_REQ message is equal to "112". |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6 Basic GSM functions | Basic Functions defined for GSM‑API (Facility selector 256): |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1 Facility message parameter | |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.1 Send Short Messages | Send Short Messages
The application uses this message to send a TPDU, which contains a Short Message (SMS‑SUBMIT‑REQUEST) or a SMS‑COMMAND. The destined Service Centre is defined by the Service Centre Address.
The TP Message Reference of the Short Message which is placed within the TPDU is handled by GSM‑API. To handle subsequent messages related to the delivered Short Message, this reference is given to the application within the Confirmation.
The result of the delivery is indicated by the parameter Reason of the subsequent FACILITY_IND (function = 2).
Reason = 0: Sending the Short Message/SMS Command has been successful
Reason = 0x81xx: Sending the Short Message/SMS Command has been unsuccessful because of a GSM specific local reason given in the field "xx"
Reason = 0x84xx Sending the Short Message/SMS Command has been unsuccessful because of a network related error. The cause value (RP‑cause according to GSM 04.11 [8]) is given in the field "xx"
In case of a successful submission, the service centre might provide the SMS-SUBMIT-REPORT RP-ACK according to GSM 03.40 [5]. This will be presented in the parameter SMS-Data of the FACILITY_IND (function = 2).
In case of an unsuccessful submission, the service centre might provide the TP-Failure Cause according to GSM 03.40 [5]. This will be presented in the parameter SMS-Data of the FACILITY_IND (function = 2).
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
2
SMS Data
struct
The parameter has the following structure:
struct: TS Service Centre Address coded according to GSM 04.11 [8]
TPDU: The TPDU is coded as an array of octets. (Note 1)
NOTE 1: The length of the TPDU can be calculated as:
Length of struct "SMS Data" ‑ (Length of struct "TS Service Centre Address" + 1)
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
2
TP Message Reference
word
Coded according to GSM 03.40 [5]
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
2
TP Message Reference
word
Coded according to GSM 03.40 [5]
Reason
word
0 successful delivery
0x81xx: unsuccessful delivery local reason presented in "xx"
0x84xx unsuccessful delivery RP cause according to GSM 04.11 [8] is given in "xx"
SMS Data
struct
This optional parameter contains the following information if it is provided by the service centre:
In case of a successful submission the SMS-SUBMIT-REPORT RP-ACK according to GSM 03.40 [5].
In case of an unsuccessful submit the TP-Failure Cause according to GSM 03.40 [5].
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
2 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.2 Receive Short Message | Receive Short Message
This Message is used to handle delivered short messages and SMS‑STATUS‑REPORTS.
If the application has selected the GSM service "Short Message Received Indication", only the class and the storage location of the message will be indicated.
If the application has enabled the GSM service "Transfer of received Short Message to the application", the indication will additionally contain the SMS data.
NOTE 1: The content of a class 0 Short Message and a SMS‑STATUS‑REPORT will always be forwarded to the application, if either of the above mentioned GSM services is selected.
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
3
SMS storage
struct
octet 0: Bit mask to monitor memory status
[0]: SIM storage full. If this bit is set, the SIM storage is full or not available
[1]: Manufacturer specific storage full If this bit is set, the manufacturer specific storage is full or not available
octet 1: This octet describes the handling of the received short message.
0 rejected because SIM SMS storage full
1 rejected because memory capacity exceeded
2 not stored (class 0 Short Message)
3 stored on the SIM the record number in which the Short Message is stored is given in the subsequent octet. (record numb according to GSM 11.11 [13])
4 stored manufacturer specific the location of the storage is given in the subsequent octets
SMS data
struct
Contains:
struct: TS Service Centre Address coded according to GSM 04.11 [8]
TPDU: The TPDU is coded as an array of octets. (Note 1)
NOTE 2: The length of the TPDU can be calculated as:
Length of struct "SMS Data" ‑ (Length of struct "TS Service Centre Address" + 1)
If the application has selected the GSM service "Short Message Received Acknowledge", the FACILITY_RESP (function = 3) will trigger the SMS-DELIVER-REPORT to be sent to the service centre. In this case the application has to take care not to delay the response for longer then the RP-ACK time-out, as specified in GSM 04.08 [7]. The application might include the SMS-DELIVER-REPORT RP-ACK in the parameter SMS-Data of the FACILITY_RESP (function = 3).
If the application has not selected the GSM service "Short Message Received Acknowledge", the SMS-DELIVER-REPORT will be handled below the GSM-API. The parameter SMS-Data shall be coded as an empty struct in this case.
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
3
SMS-Data
struct
This optional parameter might be used by the application to send the SMS-DELIVER-REPORT RP-ACK to the service centre, if the GSM service "Short Message Received Acknowledge" has been selected. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.3 Receive Cell Broadcast Messages | Cell Broadcast Messages
These message are used to handle the Cell Broadcast service.
With the request, the application can restrict the receipt of Cell Broadcast messages to a limited number of Message Identifiers (parameter MI list) or/and Data coding schemes (parameter DCS list).
The indication is sent for each page of a Cell Broadcast Message. The message identifiers and the data coding scheme are coded according to GSM 03.38 [4]
The maximum length of the list of Message Identifiers is manufacturer specific. It will be given in the confirmation message of the request for GSM support.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
4
MI list
struct
word: 1. Message identifier
:
word: n. Message identifier
DCS list
struct
octet: 1. data coding scheme
:
octet: n. data coding scheme
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
4
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
4
CBS data
struct
Contains one page of CB message coded according to GSM 03.41 [6]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
4 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.4 In Call Modification | In Call Modification
The application uses this message to send a Modify to the network. The CIP value is used, to create the GSM HLC and BC to be sent to the Network. The CIP value can be 16(Telephony) or 17(Fax).
The In Call Modification Indication can be initiated by:
- The result of a modify request, which can be a modify complete (Reason = 0) or a modify reject (Reason = GSM specific cause), or
- A modify initiated by the network (Reason = 0).
The In Call Modification Response contains:
- A local response to a modify complete or modify reject coming from the network (Rejection = 0, CIP=0, LLC=empty struct);
- A modify complete (Rejection = 0) or a modify reject (Rejection = GSM specific cause) as a response to a modify previously sent by the network.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
5
CIP Value
word
Compatibility Information Profile
LLC
struct
Low Layer Compatibility
Reverse Call Setup
struct
optional octet, coded according to GSM 04.08 [7]
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
5
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
5
Reason
word
GSM specific reason
CIP Value
word
Compatibility Information Profile
LLC
struct
Low Layer Compatibility
Reverse Call Setup
struct
optional octet, coded according to GSM 04.08 [7]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
5
Reject
word
GSM specific reject
CIP Value
word
Compatibility Information Profile
LLC
struct
Low Layer Compatibility
NOTE: In case of a successful In Call Modification, the application shall use the Profile B message SELECT_B_PROTOCOL_REQ to change the B protocol after receiving the indication (in both cases mobile originated/terminated modify before sending the response. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.5 Read SIM Data | Read SIM Data
The SIM data consists of transparent, linear fixed and cyclic files. GSM‑API offers a similar way to access all these types of files. Within the request, the application gives the identifier of the file. An immediate local confirmation is given and the result is sent within one or several indications. This indication contains the data of the requested file or an error cause given by the SIM. (e.g. "no CHV initialized" or "pattern not found".).
In case of a linear fixed or cyclic file, the application has two choices to read.
1) If the parameter read criterium is empty (empty struct), the whole file is read.
As the result each record is sent in one indication. The SIM More Data identifier is 0 for the last indication (no more data is sent).
2) The application may give the record number in the parameter read criterium.
The record number is coded in one byte, 1 £ record number £ 255 (according to GSM 11.11 [13]).
In this case the requested record is sent in one indication and the SIM More Data identifier is 0.
In case of a linear fixed file the application has a third choice to read, by giving a pattern in the parameter read criterium. The pattern is coded as a sequence of bytes with maximum length = 16 as defined in GSM 11.11 [13]. GSM‑API will send one indication per record which starts with the pattern. The last indication is identified by the SIM More Data identifier = 0. If no record is found, this is treated like an error given by the SIM as described above.
In cases of a linear fixed or cyclic file, the resulting indication contains the record number of the read record.
In case of a transparent file the whole data of the file is given within one indication. The parameter read criterium has no meaning and shall be coded as an empty struct. The parameter record number of the indication shall be "0" in case of a transparent file.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
6
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF_ID
word
elementary file, according to GSM 11.11 [13]
read criterium
struct
1. case
empty struct => read all records of a file
2. case
Byte 0 = 1 read one record given by the record number
Byte 1: 1 £ record number £ 255
3. case
Byte 0 = 2 read records which starts with pattern
Byte 1 1 £ length of pattern £ 16
Byte2 pattern
:
Byte n
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
6
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
6
SIM_SW1
word
first status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_SW2
word
second status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
SIM More Data
word
0: no more data available
all other values: next data will follow
record number
word
1. linear fixed or cyclic file
the parameter contains in the low byte the number of the read record
2. transparent file
record number = "0"
SIM Data
struct
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
6 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.6 Update SIM Data | Update SIM Data
Using these messages, an application can update all types if files, (transparent linear fixed or cyclic files) of the SIM.
In case of a linear fixed file, the application sends one request per record. The request contains the record number which may vary from 1 to 255 (according to GSM 11.11 [13]). When a sequence of records of a linear fixed file is updated (e.g. the whole file is updated), the application should update the records in order of the record number to make an optimized update possible.
In case of a transparent‑ or a cyclic file, the record number shall be "0".
For each request, the application receives a local confirmation and an indication which contains the result given by the SIM. The application has to wait for this indication before it will sent new data to the SIM (next record or new file).
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
7
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
record number
word
1. linear fixed of cyclic file
the parameter contains in the low byte the number of the record
2. transparent file
record number = "0"
SIM Data
struct
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
7
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
7
SIM_SW1
word
first status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_SW2
word
second status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
7 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.7 Invalidate SIM file | Invalidate SIM file
These messages are used to invalidate a file of the SIM according to GSM 11.11 [13]. After the request, the application receives a local confirmation. The result of the SIM is given in the subsequent indication for this function.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
8
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF_ID
word
elementary file, according to GSM 11.11 [13]
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
8
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
8
SIM_SW1
word
first status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_SW2
word
second status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
8 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.8 Rehabilitate SIM file | Rehabilitate SIM file
These messages are used to rehabilitate a file of the SIM according to GSM 11.11 [13]. After the request, the application receives a local confirmation. The result of the SIM is given in the subsequent indication for this function.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
9
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF_ID
word
elementary file, according to GSM 11.11 [13]
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
9
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
9
SIM_SW1
word
first status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_SW2
word
second status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
word
elementary file, according to GSM 11.11 [13]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
9 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.9 Get SIM File Status | Get SIM File Status
These messages are used to get the status and additional information of a file.
If the status of a dedicated file or of the main file is requested, the parameter SIM_EF_ID is empty.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
10
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF_ID
struct
This parameter contains the following subparameter:
word elementary file identifier according to GSM 11.11 [13]
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
10
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
struct
This parameter contains the following subparameter:
word elementary file identifier according to GSM 11.11 [13]
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
10
SIM_SW1
word
first status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_SW2
word
second status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_DF ID
word
directory, according to GSM 11.11 [13]
SIM_EF ID
struct
This parameter contains the following subparameter:
word elementary file identifier according to GSM 11.11 [13]
status info
struct
This parameter contains the status information as defined in GSM 11.11 [13]
length of alpha identifier
struct
This optional parameter contains the length of the alpha identifier which is according to GSM 11.11 [13] defined for some elementary files.
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
10 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.10 Handle PIN code | Handle PIN code
The request to handle the PIN code offers different operations. For each operation, dependent of the value of parameter SIM PINOperation the other parameter have different meaning (all coded according to GSM 11.11 [13]):
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
11
SIM PINOperation
word
1..8, see below
SIM PINCode
struct
see below
SIM PINCodeAdd
struct
see below
SIM PINOperation
SIM PINCode:
SIM PINCodeAdd:
1: verify CHV1
CHV1
not used
2: verify CHV2
CHV2
not used
3: change CHV1
old CHV1
new CHV1
4: change CHV2
old CHV2
new CHV2
5: disable CHV1
CHV1
not used
6: enable CHV1
CHV1
not used
7: unblock CHV1
unblock CHV
new CHV1
8: unblock CHV2
unblock CHV
new CHV2
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
11
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
11
SIM_SW1
word
first status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
SIM_SW2
word
second status word, given by the SIM as a response to a command.
High byte: 0
low byte: according to GSM 11.11 [13]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
11 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.11 Get available PLMNs | Get available PLMNs
With these messages the application requests a list of currently available GSM networks (PLMNs). For each PLMN additional information is given (if the PLMN is forbidden, allowed or if it is the PLMN the MS is currently registered on).
In case of a rejection of the available PLMN request, this will be indicated in parameter Reason of the corresponding Indication.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
12
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
12
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
12
Reason
word
GSM specific reason
PLMN List
struct
4 octets, may be repeated.
Octet 0: Bit field, coded as follows:
[0]: PLMN is allowed
[1]: PLMN is the PLMN, which the MS is actually registered on
[2‑15]: reserved
Octet 1..3: PLMN coded according to GSM 04.08 [7]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
12 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.6.1.12 Set PLMN Mode | Set PLMN Mode
The application uses this message to select the mode of registration to a network. If the PLMN is not given, automatic mode is selected. In this case, the MS tries to register:
1) to the home PLMN. If this is not possible;
2) to one of the selected PLMN (given on the SIM). If this is not possible;
3) to another available PLMN.
If the NEW_PLMN is present, the MS is in manual mode. It tries only to register to the given PLMN. The default mode is not part of this specification.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
13
New PLMN
struct
PLMN coded according to GSM 04.08 [7], or empty struct
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
13
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
13
Reason
word
GSM specific reason
New PLMN
struct
PLMN coded according to GSM 04.08 [7]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
13 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7 GSM Supplementary Service functions | This subclause describes the extension of ETS 300 838 [14] profile B (COMMON‑ISDN‑API) to control GSM Supplementary Services.
The ASN1 coder/decoder is placed below the GSM‑API. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.1 Overview | The extension for GSM Supplementary services offers the control of call independent and call related supplementary services. Only one SS transaction can take place in each direction at the same time. Whenever an application will try to start a second Mobile Originated SS transaction, it will be rejected with the info value = 0x1107 "internal busy condition". Thus no transaction identifier is needed.
Functions defined for GSM‑API (Facility selector 256) GSM Supplementary Services: |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.2 Enable GSM Supplementary Service Functionality | The Facility messages to "Register GSM Support are used to enable GSM supplementary services. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.3 GSM Supplementary Services Parameters | The following subclauses describe parameters, which are used in the Facility messages for GSM Supplementary Services.
7.7.3.1 ss_operation
ss_operation (word)
This parameter describes the content of the GSM Supplementary Services related Facility messages or the Info Element parameter in case of a GSM facility.
Defined values of ss_operation are:
0 Used if a Release Complete message which terminates the SS transaction is received from the network without any additional information like a cause or a facility.
0x43xx GSM cause from the network according to GSM 04.08 [7]. In the field "xx" the cause value received within the cause information element (octet 4) from the network is indicated.
0xA1xx Invoke message
In the field "xx" the ss_operation_code according to GSM 04.80 [9] is indicated;
0xA2xx Return Result message
In the field "xx" the ss_operation_code according to GSM 04.80 [9] is indicated;
0xA3xx Return Error message
In the field "xx" the ss_error_code according to GSM 04.80 [9] is indicated;
0x80xx Reject (general problem) message
In the field "xx" the ss_general_problem_code according to GSM 04.80 [9] is indicated;
0x81xx Reject (invoke problem) message
In the field "xx" the ss_invoke_problem_code according to GSM 04.80 [9] is indicated;
0x82xx Reject (return result problem) message
In the field "xx" the ss_return_resutl_problem_code according to GSM 04.80 [9] is indicated;
0x83xx Reject (return_error_problem) message
In the field "xx" the ss_return_error_problem_code according to GSM 04.80 [9] is indicated. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.3.2 Forwarding Feature | Forwarding Feature (struct)
The forwarding feature contains an optional basic_service_code, optional ss_status, optional forw_to_num, optional forw_to_subadr and optional no_reply_cond_time.
It appears in the forw_feat_list parameter of the FACILITY_CONF message (function 257 Mobile Originated SS transaction).
Forwarding Feature Parameter:
basic_service_
code
struct
Byte 0 code_flag
= 0 => teleservice
= 1 => bearer service
Byte 1 service code (acc. to GSM 09.02 [12])
ss_status
struct
Byte 0 SS status (acc. to GSM 09.02 [12])
forw_to_num
struct
contains the forwarded to number parameter coded as an ISDN‑Address String according to GSM 09.02 [12]
forw_to_subaddr
struct
contains the forwarded to subaddress parameter coded as an ISDN‑Subaddress String according to GSM 09.02 [12]
no_reply_cond_
time
struct
Byte 0 no reply condition time parameter according to GSM 09.02 [12] (integer value from 5 .. 30) coded in one Octet. |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4 Facility message parameter | |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.1 Restrict SS Information | Restrict SS Information
This message is sent from the application to the protocol to restrict SS‑related information from the protocol to the application.
If the protocol receives from the network information related to Basic Service Codes of the last request to restrict SS information , (e.g. "forw_feat" in the "forw_feat_list") then this information will be included in the messages described below.
Every new message overrides the last selections.
If no request for SS information restriction was sent or no Basic Service Code is specified (empty basic_service_code_list) then all information will be given to the application.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
256
basic_service_
code_list
struct
contains n (n ³ 0) basic service codes
1. service code (if n > 0):
Byte 0 code_flag
= 0 => teleservice
= 1 => bearer service
Byte 1 service code (acc. to GSM 09.02 [12])
:
n. service code:
Byte 2 x (n ‑ 1) code_flag
Byte 2 x n ‑ 1 service code
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
256 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.2 Mobile Originated SS Transaction | Mobile Originated SS Transaction
These messages are used to start and end a Mobile originated SS transaction.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
257
ss_ussd_string
struct
ss_ussd_coding_
scheme
struct
Byte 0 CellBroadcastDataCodingScheme as defined in GSM 03.38 [4]
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
257
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
257
ss_operation
word
ss_code
struct
Byte 0 SS code (acc. to GSM 09.02 [12])
basic_service_
code
struct
Byte 0 code_flag
= 0 => teleservice
= 1 => bearer service
Byte 1 service code (acc. to GSM 09.02 [12])
ss_status
struct
Byte 0 SS status (acc. to GSM 09.02 [12])
ss_ussd_coding_
scheme
struct
Byte 0 CellBroadcastDataCodingScheme as defined in GSM 03.38 [4]
ss_ussd_string
struct
clir_restr_opt
struct
Byte 0 = 0 => permanent
= 1 => temporary default restriction
= 2 => temporary default allowed
override_
category
struct
Byte 0 = 0 => override enable
= 1 => override disable
forw_feat_list
struct
contains a list of forwarding features
Byte 0 n = number of forwarding features (if any)
struct 1. forwarding feature
:
struct n. forwarding feature
call_barring_
cause
struct
Byte 0 = 0 => barring service active
= 1 => operator barring
pw_reg_fail_
cause
struct
Byte 0 = 0 => undetermined
= 1 => invalid format
= 2=> new password mismatch
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
257 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.3 Clear Mobile Originated SS Transaction | Clear Mobile Originated SS Transaction
These messages are used to clear a Mobile originated SS transaction.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
258
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
258 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.4 Receive SS Message | Receive SS Message
These messages are used to handle:
1) The spontaneous reception of an incoming SS transaction (Forward check indication).
2) The message transfer for unstructured SS data.
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
259
ss_operation
word
ss_code
struct
Byte 0 SS code (acc. to GSM 09.02 [12])
ss_status
struct
Byte 0 SS status (acc. to GSM 09.02 [12])
notification
struct
Byte 0 SS Notification (acc. to GSM 04.80 [9])
Byte 1 SS Indication mask. Bit field coded as follows:
[0]: call waiting
[1]: call on hold
[2]: call is retrieved
[3]: MPTY
[4]: CLIR Suppression rejected
[5]: call Activation (only phase 1)
[6]: Erasure (only phase 1)
[7]: not used
ss_ussd_coding_
scheme
struct
Byte 0 CellBroadcastDataCodingScheme as defined in GSM 03.38 [4]
ss_ussd_string
struct
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
259 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.5 Call Hold | Call Hold
These messages are used to handle the call related part of the Call Hold Supplementary service. The PLCI of the FACILITY messages describes the identifier of the call, which will be put on "Hold".
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
260
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
260
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
260
Reason
word
0: successful request for Call Hold
0x83xx: request for Call Hold rejected. The field "xx" contains the cause coded according to GSM 04.08 [7]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
260 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.6 Call Retrieve | Call Retrieve
These messages are used to handle the call related part of the Call Retrieve Supplementary service. The PLCI of the FACILITY messages describes the identifier of the call, which will be retrieved.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
261
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
261
Facility Indication Parameter:
Facility selector
word
256: GSM Support
Function
word
261
Reason
word
0: successful request for Call Retrieve
0x83xx request for Call Retrieve rejected, The field "xx" contains the cause coded according to GSM 04.08 [7]
Facility Response Parameter:
Facility selector
word
256: GSM Support
Function
word
261 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.7 Call Related Ussd | Call Related Ussd
These messages are used to handle the Call Related Ussd Supplementary service. The PLCI of the FACILITY_REQ/CONF/IND/RESP messages describes the identifier of the call.
Facility Request Parameter:
Facility selector
word
256: GSM Support
Function
word
262
ss_ussd_string
struct
Facility Confirmation Parameter:
Facility selector
word
256: GSM Support
Function
word
262 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.7.4.8 Receive Call Related Facility | Receive Call Related Facility
These messages are used to receive the information of a call related facility. The related call is identified by the PLCI of the FACILITY_IND and FACILITY_RESP message.
Facility Indication Parameter:
Facility selector
word
256: GSM support
Function
word
263
ss_operation
word
ss_code
struct
Byte 0 SS code (acc. to GSM 09.02 [12])
ss_status
struct
Byte 0 SS status (acc. to GSM 09.02 [12])
notification
struct
Byte 0 SS Notification (acc. to GSM 04.80 [9])
Byte 1 SS Indication mask. Bit field coded as follows:
[0]: call waiting
[1]: call on hold
[2]: call is retrieved
[3]: MPTY
[4]: CLIR Suppression rejected
[5]: call Activation (only phase 1)
[6]: Erasure (only phase 1)
[7]: not used
ss_ussd_string
struct
Facility Response Parameter:
Facility selector
word
256: GSM support
Function
word
263 |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.8 Extended GSM functionality | This subclause defines additional functions for GSM‑API (Facility selector 256): |
62d647ebf6fb27c62e31dabd4f0b53c9 | 07.08 | 7.8.1 Facility Message parameter |
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