DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1153TSC-ADM (Administered Temporary Signaling Connections)
3
TSC-ADM (Administered TemporarySignaling Connections)
No alarms are generated for the TSC-ADM (Administered Temporary Signaling
Connections) MO. Due to the unusual length of th e full name of this MO (that is,
Administered Temporary Signaling Connec tions), the abbreviation Ad ministered
TSC is used often in this Maintenance docum entation.
In general, administered temp orary signaling c onnections provid e a path through
ISDN-PRI switches for supplementary D-channel messag es. ISDN-PRI
applications [ that is, Distributed Communic ations System (DCS)] use temporary
signaling connec tions to exchange user infor mation across an ISDN-PRI
network. What makes Administered Temporary Signaling Connec tion unique is
that these particular Temporary Signaling Connec tions stay active for an
extended period time (that is, similar to a permanent d ata connection). These
ADM Temporary Signaling Connections are used for DCS features that require a
NCATSC, and the ADM TSC serves as the logical channel function in a DCS
network.
A Non-Call Associated Temporary Signaling Conn ection (NCATSC) is a virtual
connection established within a D-channel. The NCATSC connection provides
user to user service by exchang ing USER INFORMATION messages through the
virtual connection in a D-c hannel without associating any B-c hannel connections.
An

Administered TSC

is a special NCA Administe red TSC defined for the DCS
over the ISDN-PRI D-channel application of G3iV1.1-286 or G3iV2-386. The
Administered TSC connection is a sp ecial type of NCATSC that has an
administratively defined en dpoint and is estab lished for an extended period of
time.
There are two types of ADMTSCs:
■Permanent
TSCs are established by the originating PBX (that is

Near-end

ADM TSC)
or by the terminating PBX (that is,

Far-end

ADM TSC). Once these
ADMTSCs are established, they remain active.
■As-Needed
TSCs are established on an as-needed bas is. In this case, the ADMTSC is
established whenever it is need ed, and not before.
MO Name (in
Alarm Log)
Alarm
Level Initial Command to Run Full Name of MO
TSC-ADM none none Administered Temporary Signaling
Connections
TSC-ADM none none Administered Temporary Signaling
Connections