Isdn-Pri Trunk Connections - NEC Xen IPK Features & Specifications Manual

ISDN-PRI Trunk
Connections
FEATURE
DESCRIPTION
SYSTEM
AVAILABILITY
OPERATING
PROCEDURES
SERVICE
CONDITIONS
Features and Specifications Manual
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.
Terminal Type
All Stations.
Required Components
PRT(1)-U( ) ETU
CLKG-U( ) Unit
Not applicable.
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.
I-8
I8 – 377