ATT DEFINITY Communications System Generic 3 Instructions Manual

Information System Network (ISN) Interface
Issue  3   March 1996
3-787
nConnected Indication — This o ption should be disabled, and can only be 
set if Keyboard Dialing is enabled.
nCOR — Outgoing lines should be origination restricted. Incoming lines 
should be termination restricted.
Hardware and Software Requirements
One TN726 Data Line circ uit pack is required for each eight ISN interfaces. No 
a d ditional software is required. 

Feature Descriptions
3-788Issue  3   March 1996 
Integrated Directory
Feature Availability
Integrated Directory is available with all Generic 3 releases.
Description
Allows internal system users with display-equipped terminals to access the 
system database, use the touch-tone buttons to key in a name, and retrieve an 
extension number from the system  directory. The d irectory contains an 
alphanumeric listing of the names and extension numbers assigned to all voice 
terminals administered in the...

Integrated Directory
Issue  3   March 1996
3-789
— 1J409
— Ab b ott,Lynn A
— Brown,Kent J
— Cafeteria
— Carr,Danny
— Carter,Ann
— 2F816
— Purchasin g
— Barbara Quincey
— Roberson,Don T
— William Ruoff
— Smith,A E
— Streck,R T
The touch-tone buttons are used to key in the numb ers and letters labeled on 
them. The  following exc eptions a p ply:
n7 (PRS) is also used for a Q.
n9 (WXY) is also used for a Z.
n* is used for a space or comma.
n# is not used.
To activate the Integrated Directory feature, the...

Feature Descriptions
3-790Issue  3   March 1996 
At this p oint, the user can press 8 to key in the letter T or can press the Next 
Message button on the alphanumeric display. Pressing Next Message displays 
the next name in the directory and, in this case, might be Ann Carter.
When the desired name and extension number are displayed, the user can 
automatically place a call to that person by pressing the Call Display button.
If a name is entered but not found in the directory, the  display shows NO...

Integrated Directory
Issue  3   March 1996
3-791
For G3r, if a name of a station or data module begins or ends with a comma (,) or 
contains more than one comma (,,), the directory search for that name fails.
If a character outside the allowed set is entered as the name of a station or data 
module, the directory search for that name fails.
NOTE:
The “/” and “?” characters are p unctuation marks and should not be used 
to re present information. The “ +” or “%”  characters may be used to 
re present...

Feature Descriptions
3-792Issue  3   March 1996 
Integrated Services Digital Network
(ISDN) — Basic Rate Interface (BRI)
Feature Availability
This feature is available with all Generic 3 releases.
Description
Allows connection of the system to equipment or endpoints that support an 
Integrated Services  Digital  Network (ISDN) by using a standard ISDN frame 
format called the Basic Rate Interface (BRI).
An ISDN provides end-to-end d igital connectivity and uses a high-speed 
interface which provides...

Integrated Services  Digital  Network (ISDN) — Basic 
Rate Interface (BRI)
Issue  3   March 1996
3-793
ISDN-BRI Endpoint Configurations
There are two p ossible configurations with ISDN-BRI:
nPoint-to-point — Only one en d point connected to a BRI port
nMultipoint — Multiple endpoints connected to a BRI port. This 
configuration is also referred to as ‘‘passive b us configuration.’’
Because the DEFINITY system BRI provides non-blocking voice and data 
services, a maximum of two endpoints are supported on...

Feature Descriptions
3-794Issue  3   March 1996 
Terminal Equipment Identifier (TEI)
The terminal equipment identifier (TEI) is used to set up communication between 
the switch and an endpoint. The DEFI NIT Y syst em supports two types of TEIs: 
fixed and automatic. A fixed TEI endpoint supports one fixed TEI value (0 to 63), 
which is encoded into the terminal equipment, and the fixed TEI initialization 
procedure. When  administering a fixed TEI endpoint, you must assign the 
endpoint’s fixe d TEI...

Integrated Services  Digital  Network (ISDN) — Basic 
Rate Interface (BRI)
Issue  3   March 1996
3-795
ISDN-BRI Voice/Data Terminal Equipment
Voice transmission on ISDN-BRI is provided by the 7505, 7506, 7507, 8503T, 
8510, and 8520 voice terminals. All tests and services available to DCP users are 
also available to BRI users.
Data transmission on ISDN-BRI is provided by the 7500 Data Module (or a 
compatible stand-alone d ata module) and the Asynchronous Data Module 
(ADM). The 7500 Data Module is a...

Feature Descriptions
3-796Issue  3   March 1996 
Multipoint Configurations on BRI Ports
In a p assive bus multipoint c onfiguration, the system supports two BRI endpoints 
per port, thus doubling the capacity of the BRI circuit pack. When changing the 
configuration of a BRI from point-to-p oint to multipoint, the original en d point need 
not be reinitialized. However, only endpoints that support SPID initialization can 
be administered in a multipoint configuration.
Exchange of User Information
The BRI...