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The CWC group is allowed many features, here is a list of them. |
1. Call Forwarding Variable: Users can forward their calls to remote stations |
located in another office by dialing the access code and the intercom |
number of the CWC station. |
2. Call Forwarding Busy Line: Provides for the forwarding of calls to any |
interlocation station within the CWC group upon encountering a busy station. |
3. Call Forwarding Don't Answer: Provides for the forwarding of calls that are |
not answered within a predetermined number of ringing cycles. |
4. Call Transfer: Allows the station user to transfer any established call to |
any other station within the CWC group with the following constraints. |
o Dropback rules do not permit 2 outgoing trunks to be involved in the |
final 2 party connection. However, 2 outgoing trunks can be involved in |
a 3 way conversation. |
o On interoffice calls involving a fully restricted station, flash |
capability is allowed. However, the controller is not permitted to |
connect the fully-restricted station to any other station, either in |
dropback or a 3 way conversation. |
Cross network call transfer transparency requires that each location be |
provided the Call Transfer-Individual or Call Transfer-Individual-All calls |
feature. The CTO (call transfer outside) option may be provided. |
5. Call Waiting feature provides a burst of tone when the called party is busy |
on another call. The types of Call Waiting features and CWC interactions are: |
o Call Waiting Originating: allows a CWC calling station to direct a call |
waiting tone toward a busy station within the same CWC group. |
o Call Waiting Intragroup: gives call waiting tone to a called party |
which has call waiting terminating on all intragroup calls. |
o Dial Call Waiting: Allows originating CWC station users to invoke call |
waiting on CWC intragroup calls by dialing an access code followed by |
the extension number of the station to be call waited. |
6. Distinctive Ringing/CW Tone: Allows a CWC station user to determine the |
source of a call incoming to the station. This is done by associating a |
distinctive ringing or tone pattern with the incoming call based on its source. |
Interlocation CWC calls receive intragroup treatment. |
7. Message Desk Service: Provides centralized and personalized call coverage or |
message answering capabilities which can serve the needs of all CWC locations. |
The Call Forwarding Variable and Call Forwarding Busy Line/Don't Answer feature |
are needed of forwarding calls from stations within the CWC group. |
8. LASS (Local Area Signalling Service): Provides the called party with call |
management and security services. Local CCIS is required for multiple-office |
grouping within a LATA for intercom calls. The following features comprise the |
LASS offering : |
o Automatic Recall: Enables a station user to place a call to the LCDN |
(Last Call Directory Number) currently associated with the users fone. |
The LCDN can either be the last party called by the station user or the |
last party to call the station user. |
o Distinctive Alerting: Allows the station user to prespecify a set of |
numbers which activate a distinctive ring or distinctive call waiting |
tone. The CWC extension numbers can be entered on the screen list. When |
the user receives a call from one of these numbers, the phone if idle, |
will ring with a special distinctive ringing pattern. If a call waiting |
customer's line is busy, a special tone notifies the customer of the |
impending call. |
o ICLID: provides the number which is calling the station user. (Explained |
in other files) |
o Selective Call Forwarding: (Explained in other file) |
o Selective Call Rejection: Provides the user with the capability of not |
being alerted by calls from a specified set of numbers. The user inputs |
the numbers to be rejected from the station set. These numbers are |
specified either directly (dialed in) or as the number of the last call |
received. The CWC extensions are allowed on the screen list. |
=========================================================== |
=(C) 1986 The Executioner and The Egyptian Lover and PLP = |
=========================================================== |
This file is based on the AT&T document for the CWC. |
==Phrack Inc.== |
Volume One, Issue Eight, Phile #4 of 9 |
The Integrated Services Digital Network |
---==> By Dr. Doom <==--- |
ISDN or Integrated Services Digital Network has been talked about off and on |
by AT&T and until now has just been a demented AT&T fantasy, but it is to soon |
become a reality. This phile is the second I have written on the subject and |
is a cumulation of information from three basic sources : |
<1> The ISDN AT&T Technical Journal |
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