| ==Phrack Inc.== |
|
|
| Volume Four, Issue Forty-One, File 6 of 13 |
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| A Brief Guide to Definity G Series Systems |
| a.k.a |
| System 75 - 85 |
|
|
| Written by Scott Simpson |
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|
| Greets to Jim Anderson, The Missing Link, Randy Hacker, Dark Druid, |
| Nickodemus, Mercury, Renegade, Infinity (enjoy the army!), Weirdo, TomCat, |
| GarbageHeap, Phrack Inc. |
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|
| Basic History |
| ~~~~~~~~~~~~~ |
| Definity model systems came into existent in the later part of the 1970s. In |
| 1983, AT&T came out with a revised model called 75. This system was built to |
| hold more incoming lines and did not have as many errors as the earlier version |
| did. The 1983 version was replaced with a version re-written in 1986. Today, |
| the systems are referred to as G models. System 75 is now called G1 and 85 is |
| called G2. A new model is currently available and is called the Definity G3I |
| which is Generic 3 with an Intel chip, and Definity G3R which is Generic 3 with |
| a Risk chip. There are 3 different versions to each model. Version one is the |
| most common and it is an XE Single Carrier Unit. The other two systems are 2 |
| carriers. A system will usually cost somewhere around 50 to 80 thousand |
| dollars. You MIGHT come across a smaller version and it is called "Merlin |
| Legend." This system will hold about 50-100 lines. System 75 & 85 will hold |
| around 1000 lines. System 75/85 are used by companies to house all of their |
| incoming lines, as well as to send their incoming lines to destinations set up |
| by the owners, whether it be Audix or any other setup. There are many uses for |
| the system besides VMBs and PBXes. System 75/85 has three main functions that |
| hackers are interested in. They are the capabilities of VMB, bridging, and of |
| course PBX exchanges. |
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| Discovering the System |
| ~~~~~~~~~~~~~~~~~~~~~~ |
| When you find a System 75, you will make a 1200/NONE connection (if HST used), |
| as most setups have a built in 1200 baud modem. Normally, the controller |
| number will not be in the same prefix as the business or the PBX and the line |
| is actually owned by AT&T. Try CNAing a System 75 line and it will tell you |
| that it is owned by AT&T. Once you find a carrier, you will need to be able to |
| display ANSI or some equivalent type of terminal graphics. Most are set to |
| N81, but some may be E71. My suggestion is to use ToneLoc which is produced by |
| Mucho Maas and Minor Threat. As you know, this program will scan for carriers |
| as well as tones. This program can be found on just about every ELEET H/P BBS. |
|
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| Getting into the System |
| ~~~~~~~~~~~~~~~~~~~~~~~ |
| Getting into the system is the easy part if you have the defaults. You must |
| find them on your own and you will find out that a lot of people are not |
| willing to trade for them. There is one default that will enable you to snoop |
| around and tell whether or not they have a PBX, provided that they have not |
| changed the password or restricted the account. This one default is usually a |
| fully operational account without the privileges of altering any data but I |
| have come across a couple of systems where it wouldn't do anything. Using this |
| default account is a good way to start if you can find it. It is also good to |
| use any time you call and don't plan on changing anything. All actions by this |
| account are not kept in the system history file. Now on to the good stuff!! |
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| Abusing System 75 |
| ~~~~~~~~~~~~~~~~~ |
| After logging into a 75, there are several commands available depending on the |
| default you are using. This part will be for the basics. I will explain more |
| later for the more advanced people. |
|
|
| When you log in, you will have the commands LIST, DISPLAY, and a couple others |
| that don't matter. These are the only ones that you will need with the |
| aforementioned default. First type "DIS REM" (display remote access). If |
| there is a PBX set up on the system, it will be shown on the extension line. |
| The barrier code is the code to the PBX. If "none" appears, there is no code |
| and it's just 9+1. The extension line can either be 3 or 4 digits. Usually, |
| if it's 3 digits, it is run off of AUDIX (AUDio Information eXchange) or they |
| are smart and are hiding the one digit! Look at the dialplan and see if the |
| extensions are 3 or 4 digits. If it tells you that the extensions are three |
| digits, chances are that it is somewhere in the AUDIX system. If it's run off |
| of an AUDIX, look through all of the extensions by either list or display |
| 'extensions' until you find one that says something like "remote extension" or |
| something that looks different. If the one digit is hidden, use ToneLoc and |
| scan for the digit needed. Next, display the trunk groups. This will tell you |
| the actual dial-up. If you don't find it here, don't panic. As you go through |
| the trunk groups, also look at the incoming destination as well as the night |
| destination. If any of these show the remote extension here, there is your |
| PBX. If not, keep looking through all of the trunk groups. Write down all of |
| the phone numbers it gives you and try them. They can usually be found on page |
| three or so. |
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|
| A LOT of the time, places call forward a back line or so to the actual PBX. If |
| there is no remote access extension when you display the remote access, you are |
| shit out of luck unless you have a higher default and read the rest of this |
| text. |
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| Setting Up Your Own PBX |
| ~~~~~~~~~~~~~~~~~~~~~~~ |
| If you have a higher default, you will notice that if you type help, you have |
| more commands that are available to you, such as change, download, etc. |
| Remember, the company can change the privileges of the defaults so if you |
| cannot see these commands, use another default. The first thing you want to do |
| is to display the dialplan. This will tell you the amount of digits and the |
| first digit of all of the sequences. Here is an example of a dialplan. There |
| are several ways the dialplan may look. |
|
|
| Number of Digits |
| -------1----2----3----4----5----6----7----8----9 |
| -- |
| F 1 |
| I 2 Tac |
| R 3 |
| S 4 Fac |
| T 5 |
| 6 Extension |
| D 7 Extension |
| I 8 Tac |
| G 9 |
| I 0 Attendant |
| T * |
| # |
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|
| Using the above chart, all extensions will start with either a 6 or 7 and will |
| be four digits long. The Tac is two digits, and will start with a 2 or an 8. |
| Don't worry about FAC or any others at this time. |
|
|
| After you make note of this, type "ch rem" (change remote access), go to the |
| extension line, and put in an extension. Next, find the trunk group that you |
| want to use and type "ch tru #". Go to the line for night service and put the |
| extension in there. If there is already an extension for night service on all |
| of the trunks, don't worry. If not, add it, and then save it. If it says |
| invalid extension, you misread the dialplan. If you pick an extension already |
| in use, it will tell you so when you try to install it in the remote extension |
| line in the remote address. Once all of this is completed, you may go back to |
| the remote access and add a code if you like, or you may just enter "none" and |
| that will be accepted. THE NEXT PART IS VERY IMPORTANT! Look at the trunk |
| that you installed and write down the COR number. Cancel that command and type |
| "dis cor #". Make sure that the Facilities Restriction Level (FRL) at the top |
| is set to 7 (7 is the least restricted level & 0 is the most) and that under |
| calling party restrictions & called party restrictions, the word "none" (lower |
| case) is there! If they are not, type "ch cor #" and make the changes. Last, |
| type "dis feature". This will display the feature access codes for the system. |
| There will be a line that says something like "SMDR Access Code." This will be |
| the code that you enter after the barrier code if there is one. I have seen |
| some be like *6, etc. Also, there will be, on page 2 I believe, something to |
| the like of outside call. usually it is set to 9 but check to be sure. That's |
| about it for this segment. All should be fine at this point. For those that |
| want a 24 hour PBX, this next section is for you. |
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| For those of you that are greedy, and want a 24 hour PBX, most of the steps |
| above are the same. The only difference is that you will look through all of |
| the trunks until you come across one that has several incoming rotary lines in |
| it. Simply write down the port number and the phone number for future |
| reference and delete it by using the "ch" command. From the main prompt, type |
| "add tru #". For the TAC, enter a correct TAC number. Keep going until you |
| get to the COR. Enter a valid one and remember that the FRL should be set to |
| 7, etc. Keep going...the next line that is vacant and needs something is the |
| incoming destination. Set it to the remote extension that you have created. |
| The next vacant line I think is type (towards the middle of the page). Enter |
| ground and it should print out "ground-start." If there is a mistake, it will |
| not save and it will send you to the line that needs to have something on it. |
| After all is done, it will save. After this segment, there is a copy of a |
| trunk and what it should look like for the use of a PBX. Next, go to page 3 |
| and enter the port and phone number that you wrote down earlier. Save all of |
| the changes that you have made. This should be all you need. |
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| One more way! If you scan through all of the extensions on the system, you may |
| find an "open" extension. This extension may be like the phone outside in the |
| waiting room or an empty office or whatever. This extension must be a valid |
| phone number on their network or must be reachable on their AUDIX for this |
| method to work. If you know how to add ports to Audix, this method will be best |
| for you since setting up a trunk is not needed. If you find something like |
| this, it's usually better to use this as your 24 hour PBX rather than taking |
| away a line for several reasons: 1) there are less changes that you must make |
| so there will be less data saved in the history file; 2) other people that have |
| legal uses for the line won't trip out when they get a dial tone; and 3) the |
| company will not notice for some time that they've lost an extension that is |
| hardly used! To set it up this way, you must delete the old info on that |
| extension by typing "remove extension #". It will then show you the station in |
| detail. Save it at that point and it will be deleted. Next go to the remote |
| access and enter the extension that you deleted on the remote extension line. |
| Next enter a barrier code or "none" if you don't want one. Save it! Doing it |
| this way USUALLY does not require a new trunk to be added since the port is |
| already in the system but if you run into problems, go back and add it through |
| the use of a trunk. You will still have to assign it a "cor" in the remote |
| access menu, and remember to make sure that the FRL and the restrictions are |
| set correctly as stated as above. |
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| In part 2, if there is a demand, I will tell how to make a bridge off of a 75. |
| It is a lot more difficult, and requires a lot more reading of the manuals. If |
| anyone can obtain the manuals, I would strongly urge them to do so. Also |
| potentially in part 2, I will show how to create a VMB. If they have AUDIX |
| voice mail, chances are they have a 75! |
|
|
| So happy hunting and see ya soon! |
|
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| If you need to get a hold of me to ask a question, you may catch me on the nets |
| or on IRC. |
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|
| Enjoy! |
|
|
| Scott Simpson |
|
|
| ------------------------------------------------------------------------------- |
| APPENDIX A : Example of a Trunk For PBXs |
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| Trunk Group Page 1 of 5 |
| ----------- |
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| Group Number # Group Type: co Smdr Reports: n |
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| Group name: Whatever ya want Cor: # Tac: # |
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| Mis Measured? n |
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| Dial access: y Busy Threshold: 60 Night Service: What will answer |
| after hours |
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| Queue length: 0 Abandoned call Search: n Incoming Dest: What will answer |
| any time the # is |
| called unless NS |
| has an extension. |
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| Comm Type: voice Auth Code: n Digit Absorption List: |
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| Prefix-1? n Restriction: code Allowed Calls List: n |
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| Trunk-Type: Ground-start |
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| Outgoing Dial type: tone |
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| Trunk Termination: whatever it is Disconnect Timing: Whatever it is |
| to. set to. |
| ACA Assignments: n |
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|
| [Page 2 is not all that important. It's usually used for all of the |
| [maintenance to the trunk etc. so leave it all set to its default setting.] |
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| page 3 of 5 |
| Port Name Mode Type Answer delay |
| 1 Port number phone number |
| 2 |
| 3 |
| etc. |
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| That's all that is needed for the trunks. |
| ------------------------------------------------------------------------------- |
| APPENDIX B : Basic Commands and Terms |
|
|
| Basic Terminology |
| ----------------- |
| COR - Class Of Restriction |
| FRL - Facilities Restriction Level |
| SMDR - Station Message Detail Recording |
| TAC - Trunk Access Code |
| FAC - Feature Access Code |
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|
| Basic Commands for Default Emulation (513) |
| ------------------------------------------ |
| Esc Ow - Cancel |
| Esc [U - Next Page |
| Esc SB - Save |
| Esc Om - Help |
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|
| Commands for 4410 |
| ----------------- |
| Esc Op - Cancel |
| Esc Ot - Help |
| Esc Ov - Next Page |
| Esc Ow - Back Page |
| Esc OR - Save |
| Esc Oq - Refresh |
| Esc Os - Clear Fields |
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|
| Below is an explanation of all of the commands. |
|
|
| The following is a captured buffer of a login to System 75. I have captured |
| the commands and have edited the buffer to include brief definitions of the |
| commands. |
|
|
| Display and list are basically the same command, but display shows more |
| detailed information on the command that you select. For example, "list tru" |
| will list all of the trunk groups in the system. "dis tru" will ask for a |
| trunk number, and then display all of the information on that trunk. |
|
|
| CH Help |
| Please enter one of the following action command words: |
|
|
| add duplicate save |
| change list set |
| clear monitor status |
| display remove |
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|
|
| Or enter 'logoff' to logoff the system |
| Add - Is pretty self-explanatory |
| Change - Is also self-explanatory |
| Clear - will clear out the segment |
| Duplicate - will duplicate the process |
| List - self-explanatory |
| Monitor - used for testing, and monitoring the system |
| Remove - remove anything from the system EXCEPT the History File! Sorry |
| guys! |
| Save - saves work done |
| Set - sets the time, etc. |
| Status - shows current status of the system |
|
|
| List Help |
| Please enter one of the following object command words: |
| COMMANDS UNDER "LIST" |
| abbreviated-dialing groups-of-extension personal-CO-line |
| aca-parameters hunt-group pickup-group |
| bridged-extensions intercom-group station |
| configuration measurements term-ext-group |
| coverage modem-pool trunk-group |
| data-module performance |
|
|
| Or press CANCEL to cancel the command |
| Abbreviated-Dialing: Speed calling feature from their voice terminal |
| Aca-parameters: Automatic-Circuit-Assurance |
| Bridged Extensions: Used for bridging extensions together |
| Configuration: Overall system Configuration |
| Coverage: Call Coverage |
| Data-module: Description of the data module used |
| Groups Of Extensions: Lists all of the extensions available |
| Hunt-Group: Checks for active or idle status of extension numbers |
| Intercom-group: Lists the intercoms and their info |
| Modem-Pool: Allows switched connects between data modules and analog data |
| Performance: Shows the performance of the system |
| Personal-CO-line: Is for dedicated trunks to or from public terminals |
| Pickup-group: Pickup station setup |
| Station: Will list all of the available stations assigned |
| Term-ext-group: For terminating extension group |
| Trunk-Group: Lists ALL of the trunks; will NOT show all details like Display |
|
|
| Dis Help |
| Please enter one of the following object command words: |
| Commands Under 'Display' |
| abbreviated-dialing data-module personal-CO-line |
| alarms dialplan pickup-group |
| allowed-calls digit-absorption port |
| announcements ds1 psc |
| attendant errors remote-access |
| button-location-aca feature-access-codes route-pattern |
| circuit-packs hunt-group station |
| code-restriction intercom-group synchronization |
| communication-interface ixc-codes system-parameters |
| console-parameters listed-directory-numbers term-ext-group |
| cor modem-pool time |
| cos paging trunk-group |
| coverage permissions |
|
|
|
|
| Or press CANCEL to cancel the command |
| Abbreviated Dialing: Covered above, but shows more information |
| Alarms: Will show information on the alarms (which ones are on/off) |
| Allowed-Calls: Will show LD carrier codes and allowed call list |
| Announcements: |
| Attendant: Allows attendant to access trunks without voice terminals |
| Button-location-aca: Will show the location of the aca selected |
| circuit-packs: Tells types of lines used. |
| Code-Restriction: Shows restrictions for HNPA and FNPA |
| Communication-Interface: Information on the communication interface |
| Console-Parameters: Will list the parameters of the console, etc. |
| Cor: Class Of Restriction (will show the cor for the # entered) |
| Cos: Class Of Service |
| Coverage: Shows the coverage of the system (voice terminals, etc.) |
| Data-Module: Will show information for the data channels entered |
| Dialplan: List the current config for extensions etc. |
| Digit-absorption: |
| Ds1: Used for tie-trunk services |
| Errors: Shows all of the errors on the system |
| Feature-Access_Codes: Lists all of the feature access codes for all of the |
| features on the entire system |
| Hunt-Group: As above, but will tell more information for the # you enter |
| Intercom Group: Lists all of the names and their intercom assignments |
| IXC-Codes: Inter-eXchange Carrier codes |
| Listed-Directory: Lists the numbers in the directory of the system |
| Modem-Pool: Will show info on the channel you select (exp baud, parity, etc.) |
| Paging: Used for the paging stations on the voice terminals |
| Permissions: Will show the privileges of the other accounts/defaults |
| Personal-CO-Line: As above but more descriptive |
| Pickup-Group: Shows names and extensions in the specified group number |
| Port: Will show the info on the port you ask about |
| PSC: Keeps a call between to data points connected while the system is active |
| Remote-Access: Will show the Remote Access that is there (if any) |
| Route-Pattern: The pattern of routing within the voice terminals, etc. |
| Station: Will show detailed information on the station # you enter |
| Synchronization: Will show the location of the DS1 packs |
| System-Parameters: List of all of the available systems parameters |
| Term-Ext-Group: As above but more descriptive |
| Time: Will show the current time and date |
| Trunk-Group: Will show all available information for the trunk you select |
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|
