Tsc-Adm (Administered Temporary); Signaling Connections - Avaya S8700 Maintenance Manual

TSC-ADM (Administered Temporary Signaling
Connections)
TSC-ADM (Administered Temporary

Signaling Connections)

MO's Name Alarm
(in Alarm Log) Level
TSC-ADM none
No alarms are generated for Administered Temporary Signaling Connections
(TSC-ADM, also called ADM TSCs).
Administered temporary signaling connections provide a path through ISDN-PRI
networks for supplementary D-channel messages. ISDN-PRI applications such
as the Distributed Communications System (DCS) use temporary signaling
connections to exchange user information across an ISDN-PRI network. What
makes Administered TSCs unique is that these particular TSCs stay active for an
extended period of time, similar to a permanent data connection. These ADM
TSCs are used for DCS features that require Non-Call Associated (NCA) TSCs,
and the ADM TSC provides the logical channel function in a DCS network.
An NCA TSC is a virtual connection established within a D channel without
associating any B-channel connections. The connection provides user-to-user
service by exchanging USER INFORMATION messages without associated
B-channel connections.
An Administered TSC is a special NCA TSC defined for the DCS over the
ISDN-PRI D channel. The ADM TSC has an administratively defined endpoint
and is established for an extended period of time.
There are two types of ADM TSCs:
Permanent
These are established by the originating PBX (near-end ADM TSC) or by
the terminating PBX (far-end ADM TSC). Once these ADM TSCs are
established, they remain active.
As-Needed
These are established only when needed.
ADM TSC maintenance provides a strategy to verify that a far end can respond to
an ISDN-PRI USER INFORMATION TSC heartbeat message, thereby indicating
that user-user signaling is functioning. In addition, maintenance can retrieve the
status of the ADM TSC's connection state.
555-233-142
Initial Command
to Run Full Name of MO
none Administered Temporary Signaling Connections
Issue 1 May 2002 8-1197