Administrator's Guide

ISDN service
Issue 5 October 2002 1741555-233-506
Caller Information Forwarding
With CINFO you can use a vector collect digits step to retrieve caller entered
digits (ced) and customer database-provided digits (cdpd) supplied by the network
in an incoming call’s ISDN SET UP message. ISDN is required if the CINFO
comes from the network.
Facility Restriction Level (FRL) and Traveling
Class Mark (TCM)
The TCM used to pass on the originating facility’s FRL is sent by ISDN facilities
in the SETUP message only if the trunk services type is tandem.
Information Indicator Digits (II-digits)
With II-digits you can make vector-routing decisions based on the type of the
originating line. II-digits are provided for an incoming call by ISDN-PRI. It is a
generally available ISDN AT&T Network service.
Malicious Call Trace (MCT)
ISDN calling number identification is sent when MCT notification is activated on
an ISDN trunk.
Multiple Subscriber Number (MSN) - Limited
The ISDN standard MSN feature lets you assign multiple extensions to a single
BRI endpoint. A side effect of supporting the NT interface is the MSN feature
works with BRI endpoints allowing the Channel ID IE to be encoded as
“preferred.” The endpoint must be administered as the far end of an NT-side
ISDN-BRI trunk group. Also, you must use the Uniform Dial Plan (UDP) feature
to assign the desired extensions to the “node” at the far end of the trunk group.
Overlap Sending
You can administer overlap sending on AAR and ARS calls routed over ISDN
trunk groups. This allows you to send and receive digits one digit at a time instead
of enbloc. (With enbloc, digits are not sent until the entire group of digits is
received).
Interworking between TGU/TGE trunks and
ISDN (Italy)
This feature modifies ISDN messaging operations in systems that use TGE/TGU
trunks to network satellite switches. Messaging from the Avaya MultiVantage
provides appropriate ringback or busy tone to the calling party.