| ==Phrack Inc.== | |
| Volume Four, Issue Forty-One, File 6 of 13 | |
| A Brief Guide to Definity G Series Systems | |
| a.k.a | |
| System 75 - 85 | |
| Written by Scott Simpson | |
| Greets to Jim Anderson, The Missing Link, Randy Hacker, Dark Druid, | |
| Nickodemus, Mercury, Renegade, Infinity (enjoy the army!), Weirdo, TomCat, | |
| GarbageHeap, Phrack Inc. | |
| 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. | |
| 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. | |
| 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!! | |
| 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. | |
| 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. | |
| 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 * | |
| # | |
| 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. | |
| 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. | |
| 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. | |
| 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! | |
| If you need to get a hold of me to ask a question, you may catch me on the nets | |
| or on IRC. | |
| Enjoy! | |
| Scott Simpson | |
| ------------------------------------------------------------------------------- | |
| APPENDIX A : Example of a Trunk For PBXs | |
| Trunk Group Page 1 of 5 | |
| ----------- | |
| Group Number # Group Type: co Smdr Reports: n | |
| Group name: Whatever ya want Cor: # Tac: # | |
| Mis Measured? n | |
| Dial access: y Busy Threshold: 60 Night Service: What will answer | |
| after hours | |
| Queue length: 0 Abandoned call Search: n Incoming Dest: What will answer | |
| any time the # is | |
| called unless NS | |
| has an extension. | |
| Comm Type: voice Auth Code: n Digit Absorption List: | |
| Prefix-1? n Restriction: code Allowed Calls List: n | |
| Trunk-Type: Ground-start | |
| Outgoing Dial type: tone | |
| Trunk Termination: whatever it is Disconnect Timing: Whatever it is | |
| to. set to. | |
| ACA Assignments: n | |
| [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.] | |
| page 3 of 5 | |
| Port Name Mode Type Answer delay | |
| 1 Port number phone number | |
| 2 | |
| 3 | |
| etc. | |
| 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 | |
| Basic Commands for Default Emulation (513) | |
| ------------------------------------------ | |
| Esc Ow - Cancel | |
| Esc [U - Next Page | |
| Esc SB - Save | |
| Esc Om - Help | |
| 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 | |
| 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 | |
| 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 | |