ATT DEFINITY Communications System Generic 3 Instructions Manual

Wideband Switching
Issue  3   March 1996
3-1255
To reduce the possibility of glare, the DEFINITY switch should be administered 
so that each side of the ISDN-PRI interface select channels from o p posite ends 
of the interface.
In other words, one end should be administered to select B-channels from the 
high side (DS0 channel 23) and the other a dministered to select B-channels from 
the  low side (DS0 channel 1) so as not to interfere with each other. In a ddition, 
there are algorithms in the switch’s...

Feature Descriptions
3-1256Issue  3   March 1996 
nCall Detail Recording (CDR)
Wideband calls trigger CDR record s containing the Wideband Bearer 
Capability Class (BCC) and the call bandwidth.
Both access endpoints and PRI  endpoints involved in a call are treated as 
line-side entities in that they do not trigger a standard CDR record. 
Intra-switch CDR may b e used to trig ger intra-switch records involving PRI 
endpoints. However, the intra-switch CDR c a pability is automatically 
disabled as soon...

Wideband Switching
Issue  3   March 1996
3-1257
nFacility Test Calls
Facility Test Calls can be used to perform loop-back testing of the 
Wideband call facility.
nGeneralized Route Selection
Generalized Route Selection supports a Wideband Bearer Capability 
Class (BCC) to identify Wideband calls. The Generalized Route Selection 
feature searches a routing pattern for a p reference that has the Wi deband 
BCC. Routing preferences that sup port Wi deband BCC also support other 
BCCs to allow different call...

Feature Descriptions
3-1258Issue  3   March 1996 
PRI Endpoint
PRI endpoints are administered to define the number of DS0s to b e associated 
with an extension. The PRI endpoint’s numb er of DS0s (that is, the width) is 
limited by the type of ISDN-PRI interface but is always between 1 and 31. If the 
PRI endpoint is administered for a width narrower than the maximum numb er of
B-channels supported by the line-side facility, then multiple PRI end points can 
be administered within that same line-side...

Wideband Switching
Issue  3   March 1996
3-1259
Hardware and Software Requirements
Wideband software is optional. The TN464C (Universal DS1) circuit pack or later 
must be used on both the line-side and network side of the switch for any facility 
that carries Wideband traffic. The only other a dditional hardware/software 
required for Wi deband switching is that the PRI en d points must a dhere to the 
ISDN-PRI Wideband interface requirements and to PRI line-side requirements. 

Feature Descriptions
3-1260Issue  3   March 1996 
World Class Basic Rate Interface (BRI)
Feature Availability
Available with G3V4 a n d later releases
Description
World Class BRI (WCC BRI) provides an international BRI  platform that offers 
multiple p rotocol options to meet specific country and application requirements. 
It provides access to Video Conferencing, Desktop Video Conferencing, Data 
Transmission, and other non-voice based applications that use BRI as a 
communication interface. Voice...

World Class Basic Rate Interface (BRI)
Issue  3   March 1996
3-1261
Administration
The system administrator must specify in the “End pt Init?” field on the “ Data 
Module” or “Station”  forms whether the administered WCC BRI device sup ports 
Bellcore NI-1 endpoint initialization procedures. This field should be set to “y” for 
all Bellcore NI-1 devices, and the field should be set to “n” for all other WCC BRI 
devices (Australia, Japan, Singapore and ETSI). If the “Endpt Init” field is set to 
“y” then...

Feature Descriptions
3-1262Issue  3   March 1996 
World Class Tone Detection
Feature Availability
This feature is available with G3i-Global and Generic V2 and later releases. 
Description
World Class Tone Detection allows the DEFINITY switch to identify and handle 
different typ es of call progress tones, depending on the system administration. 
The tone detector and identification is used to display on Data Terminal Dialing 
and for deciding when to send digits on trunk calls through Abbreviated...

World Class Tone Detection
Issue  3   March 1996
3-1263
nData Call Setup Multiple-Line Data Terminal Dialing is supported ONLY if 
the administered Level of Tone Detection is ‘‘precise’’.
nThe feedback displayed by Data Terminal Dialing in resp onse to received 
tones is affected by settings of World Class Tone Detection.
nAbbreviated Dial, AAR, ARS, and Data Terminal Dialing can specify a wait 
for d ial tone in outpulsing digits over a trunk. The World Class Tone 
Detection feature should be configured...

Feature Descriptions
3-1264Issue  3   March 1996 
World Class Tone Generation
Feature Availability
This feature is available with G3i-Global, all Generic V2, and later releases.
Description
Allows administrators to specify the base call progress tone set to be generate d 
by the system and to then customize the set by selecting different values for 
frequency and cadence for up to 6 individually administrable tones.
Considerations
If a particular tone (for examp le, conference tone) is not d efined for...