ATT DEFINITY Communications System Generic 3 Instructions Manual

Integrated Services  Digital  Network (ISDN) — Primary 
Rate Interface
Issue  3   March 1996
3-807
On calls incoming to a DEFINITY system, the connected party’s name is 
provided if the incoming ISDN-PRI trunk g roup is administered to send the 
name to the network.
NOTE:
The connected party may or may not be the party actually called in 
the event that the call is transferred before the connected party 
answers the call.
The display fields that may be used for the ISDN-PRI are as follows:
nName —...

Feature Descriptions
3-808Issue  3   March 1996 
nIf only the number information is available, the displays are as follows:
— Calling Party Disp lay
a= ANSWERED BY     CALLED NUMBER      MISCID
— Called Party Display
a= CALL FROM       CALLING NUMBER    MISCID
nIf neither the name nor the number information is available, the displays 
are as follows:
— Calling Party Display (shows one of the following, depending on 
administration)
a= DIALED NUMBER                     MISCID
a= TRUNK NAME...

Integrated Services  Digital  Network (ISDN) — Primary 
Rate Interface
Issue  3   March 1996
3-809
By delivering call identification information such as CPN/BN and switch 
information such as the answering agent’s extension to an adjunct network (ISDN 
Gateway), the adjunct can automatically deliver data screens to agents for new 
call arrivals and call transfers.
Figure 3-22 shows a simplified diagram of a CPN/BN to host arrangement. The 
ISDN Gateway is a 3B2 or 6386 computer connected to the switch on...

Feature Descriptions
3-810Issue  3   March 1996 
collects all of the a d dress digits from local users as well as users at other 
satellite and tributary switches, and originates a call over the ISDN-PRI to 
the tandem switch.
Automatic Alternate Routing (AAR) and Automatic Route Selection (ARS) 
are used with the ISDN-PRI and D S1 trunking facilities to access ETN 
facilities. The AAR and ARS features are used to collect the  dialing 
information for the call that is originated from the main switch....

Integrated Services  Digital  Network (ISDN) — Primary 
Rate Interface
Issue  3   March 1996
3-811
Access to Software Defined Data Network 
(SDDN)
With ISDN-PRI, the Software Defined Data Network (SDDN) service may be 
accessed. SDDN provides virtual private line connectivity via the AT&T switched 
network (4ESS switch). The services provided b y SDDN include voice, d ata, and 
video applications. SDDN services complement the Software Defined Network 
(SDN) voice services.
 Access to Switched Digital...

Feature Descriptions
3-812Issue  3   March 1996 
Figure 3-23. Interworking Example
National ISDN-2 Services
G3V3 and later releases support National ISDN-2 (NI-2), which is desc ribed in 
the TR1268 and TR1270 ISDN-PRI pro t o col sta n dards defined by Bell 
Communications Research (Bellcore). Bellcore TR1268 and TR1270 are a 
superset of the NIU-302 standard and are p art of the National ISDN-2 plan 
defined by the North American ISDN Users Forum.
NI-2 offers many of the same services as the AT&T 4ESS...

Integrated Services  Digital  Network (ISDN) — Primary 
Rate Interface
Issue  3   March 1996
3-813
Non-Facility Associated Signaling
Non-Facility Associated Signaling (NFAS) allows an ISDN-PRI T1/E1  Interface 
D-channel (signaling channel) to convey signaling information for B-c hannels 
(voice and data channels) on ISDN-PRI T1/E1 f a cilities other than the one 
containing the D-channel. Please refer to the section on Facility and Non-Facility 
Associated Signaling elsewhere in this manual.
D-Channel...

Feature Descriptions
3-814Issue  3   March 1996 
displays either the dialed d i gits or the trunk group name (depending on 
administration) on the calling party’s display.
ISDN-PRI facilities support equal access to inter-exchange carriers.
Interactions
The following features interact with the Integrated Services Digital Network — 
Primary Rate Interface feature.
nAttendant Display
The information provided by ISDN-PRI Call Identification Display is in 
a d dition to the display features already...

Integrated Services  Digital  Network (ISDN) — Primary 
Rate Interface
Issue  3   March 1996
3-815
nConference — Terminal
A conference call is identified as a conference call with ‘‘n’’ number of 
conferees.  This display information is generated locally and  does not 
change the d isplay of a user on another switch.
nDCS 
If both DCS and ISDN-PRI features are provided over the same facility with 
a DEFINITY system Generic 3, the ISDN-PRI d isplay information is 
displayed in DCS format.
nFRL and TCM
The...

Feature Descriptions
3-816Issue  3   March 1996 
nDS1 Circuit Pack (for DS1 and E1)
nDS1 Synchronization Plan (for DS1 and E1)
nProcessor Interface Circuit Pack (G3vsV1/G3sV1, and G3iV1)
nISDN-PRI Trunk Group
nGRS Routing Patterns
nSignaling Group (see the Facility and Non-Facility Associated Signaling 
feature d esc ription elsewhere in this document).
The following administration items are required for ISDN-PRI Call Identification 
Display:
nA Direct Distance Dialing CPN Prefix Table which includes the...