Features and Specifications Manual
I8 – 377
Doc.
No. 8201 -
Release 1.0
July 2003
ISDN-PRI Trunk
Connections
I-8
FEATURE
DESCRIPTION
This feature allows the system to connect directly to ESTI Primary Rate
ISDN Lines. The PRT(1)-U( ) ETU is required for this facility and allows one
connection. Each Primary Rate ISDN connection carries up to 30 channels,
providing the system with a total of 30 outside trunks. The use of digital
ISDN lines enables voice calls to be made which take advantage of superior
voice quality and call security. They may also be more economical than
analogue trunks.
Malicious Call Trace is available for the Australian Network.
Network supplementary services via the stimulus (keypad) mode of
operation is also available.
SYSTEM
AVAILABILITY
Terminal Type
All Stations.
Required Components
PRT(1)-U( ) ETU
CLKG-U( ) Unit
OPERATING
PROCEDURES
Not applicable.
SERVICE
CONDITIONS
Data Assignment for ISDN-PRI Installation
Use Memory Block 7-1 (Card Interface Slot Assignment) to select the
PRT(1)-U( ) ETU.
Use Memory Block 1-8-33 (Master Clock Selection) to assign the
source for necessary synchronisation of clocking.
Use Memory Block 1-13-00 (PRT Channel Assignment) to select the
available B channels.
Use Memory Block 1-13-05 (PRT B-Channel Map Assignment) to
specify the correspondence between B channels and PRT(CO) trunks.
Use Memory Block 1-1-80 (ISDN DTMF Duration/Interdigit Selection)
to specify the tone duration (default: 100ms) and interdigit time
(default: 70 ms) of DTMF signals sent from the ISDN trunk.
Use Memory Block 3-03 (Trunk-to-Trunk Group Assignment) to assign
each ISDN-PRI trunk to a Trunk Group.
Use Memory Block 3-92 (Trunk Installed, DP/DTMF Selection) to
specify each ISDN-PRI trunk as DP or DTMF.
