ATT DEFINITY Communications System Generic 3 Instructions Manual

Data Call Setu p
Issue  3   March 1996
3-577
CHECK OPTIONS Placing a call Notifies calling terminal that data module 
options are incompatible.
XX  I N Q UEUECall in q ueue Current position of the user in queue.
XX-indicates position.
PROCESSING* Call in q ueue Notifies user when out of queue. Facility is 
available.
TIMEOUT*Call in q ueue Notifies user when time has been 
exceeded. Call will b e terminated.
FORWARDED* Receiving a call Equivalent to redirection notification signal. 
Called terminal has...

Feature Descriptions
3-578Issue  3   March 1996 
Data Call Setup for ISDN-BRI Modules
Voice Terminal Dialing for ISDN-BRI 
Data Modules
Allows ISDN-BRI voice terminal users to directly originate a d ata call. To set up a 
data call, the user just presses the Data button on the ISDN-BRI voice terminal, 
enters the desired number on the dial pad, and then presses the Data button 
again.
The following data functions are not supported by BRI  terminals:
nOne b utton transfer to data
nReturn-to-voice
nData...

Data Call Setu p
Issue  3   March 1996
3-579
n, (pause) character may b e used to place a 1.5-second pause in dialing.  
(multiple, can be used).
n% (mark) character may be used to indicate the following digits are for 
end-to-end signaling (touch-tone). This is required when the trunk is 
rotary. It is not required when the trunk is ‘‘touch-tone.’’ 
nUNDERLINE or BACKSPACE characters may be used to correct 
previously typ ed characters on the same line.
n@ may be used to delete the entire line and start...

Feature Descriptions
3-580Issue  3   March 1996 
Call Forwarding All Calls
Call Forwarding All Calls allows incoming data calls to be redirected to another 
extension that is designated by the user. Activation/deactivation of the feature is 
done either by the attendant or by the forward ing party itself through the dialing 
of a feature access code.
Data Hotline
Data Hotline is a security feature. The switch will terminate the call to a 
preadministered hotline d estination. If a user enters an a ddress...

Data Call Setu p
Issue  3   March 1996
3-581
Endpoint Initialization
BRI en d points have to successfully complete end p oint initialization procedures 
in order to be fully operative. It is usually  carried out at the time of installation, or 
as part of reconfiguration.
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...

Feature Descriptions
3-582Issue  3   March 1996 
CHECK OPTIONS Placing a call Notifies calling terminal that data module 
options are incompatible.
XX  I N Q UEUECall in q ueue Current position of the user in queue.
XX-indicates position.
PROCESSING* Call in q ueue Notifies user when out of queue.
Facility is available.
TIMEOUT*Call in q ueue Notifies user when time has been 
exceeded. Call will b e terminated.
FORWARDED* Receiving a call Equivalent to redirection notification signal. 
Called terminal...

Data Call Setu p
Issue  3   March 1996
3-583
Considerations
All systems have Data Call Setup c a pability. This facilitates data calling by 
eliminating the need to dedicate a voice terminal for d ata calls. DEFINITY system 
Generic 3 offers the enhancement of off-premises Multiple Line Dialing.
BRI has a voice to data restriction. A voice terminal cannot call a data terminal, 
and a data terminal cannot call a voice terminal.
BRI voice terminals cannot have Data Extension buttons. Although DCP sets...

Feature Descriptions
3-584Issue  3   March 1996 
nCall Forwarding All Calls
Calls incoming to a data module can be forwarded. That is, calls can be 
redirected to another en d point. This feature is activated using Data 
Terminal (Keyboard) Dialing. If the forwarded-to endpoint is an analog 
data endpoint, and the calling user is a d igital endpoint, modem pooling is 
activated automatically.
nData Call Hot Line
Upon going off-hook for origination, the system automatically places a call 
to a...

Data Call Setu p
Issue  3   March 1996
3-585
If the tone detection option is not set to ‘‘precise,’’ and a d ata c all is set up 
over an analog trunk, the data call setup messages desc ribing the status 
of the called endpoint (that is, RINGING, BUSY, TRY AGAIN, etc .), 
changes according to which tone d etection option is selected.
Tone Detection a p plies to non-ISDN trunk lines as well.
Administration
Data Call Setup does not require assignment as such; however, the following 
related items require...

Feature Descriptions
3-586Issue  3   March 1996 
asynchronous DCE c onfiguration:  an RS-366 ACU interface and a second 
asynchronous EIA-232D interface. In synchronous mode, the 7500B 
supports circuit-switched or nailed-up data communications, requires 
either the Multi-purpose Enhancement Board or the High-Speed 
Synchronous Enhancement Board, and c an only b e controlled via the front 
panel. In order to be configured as a synchronous DCE, the 7500B must 
have either the Multi-purpose Enhancement...