Special Configuration For Callback For Pstn; Minimum Call Duration Timers And Idle Timers - Nortel RLC Installation And Administration Manual

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June 2005

Special configuration for Callback for PSTN

The Callback for PSTN field on the RLC Remote Connection Configuration
property sheet allows you to enable and disable Callback. The default is
Callback for PSTN disabled. This means that the RLC places data calls to the
Remote Gateway 9150 unit to establish additional bandwidth during normal
operation. If you enable Callback for PSTN, the Remote Gateway 9150 unit
places the call to the RLC to establish additional bandwidth.
Note: During a RLC or Remote Gateway 9150 reset, or during a sudden IP
network failure, both the RLC and the Remote Gateway 9150 unit attempt to
call each other to establish the Primary Signaling Link. When this occurs, either
system can actually establish the first connection. Follow the guidelines below
when configuring callback for PSTN.
If Callback for PSTN is disabled:
1.
Configure the Primary Network Port with a DID number on the host PBX
that is routed over a data capable PRI.
2.
Configure either DID numbers or internal DNs on all other network ports
(one per B Channel).
If Callback for PSTN is enabled:
1.
Configure the Primary Network Port with a DID number on the host PBX
routed over a data capable PRI.
2.
Configure DID numbers on all other network ports (one per B Channel).

Minimum call duration timers and Idle timers

The RLC uses minimum call duration timers and idle timers to help control
PSTN costs. For a detailed discussion of these timers, refer to "Timers" on page
25. For information on configuring these timers, refer to "User On Demand Idle
Timer" and "User On Demand Min Call Timer" on page 209.
RLC Installation and Administration Guide
Configuring the RLC
203

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