Nortel Networks SRG 50 NN43001-307 - Manual (Page 168)

168 Alternative Call Routing for Network Bandwidth Management
Figure 68
Call between a main office telephone and a branch office telephone
Telephone A calls Telephone B (the user dials DN 3121). In this example,
the call alternately routes to the PSTN. (The PSTN telephone number of
Telephone B is 613-966-3121.)
Configuration required Configure the following:
At the main office:
• Use one of the dialing plan software packages to process the call, such
as CDP or NARS.
• Provision an ALTPrefix for the MO zone.
• Provision the ALTPrefix as a Steering Code at the main office. Build a
Route List Index (RLI) so these calls go to the virtual trunk or configure
the Vacant Number Routing feature to do the same.
• Provision the ALTPrefix as a Steering Code. Build a Route List Index
(RLI). Translate these calls to go to this RLI which contains PSTN or
MCDN trunks.
• Set up a Digit Manipulation Index (DMI) to outpulse the correct digits to
the branch office telephone.
At the branch office:
• No provisioning required.
At the NRS:
• No provisioning required.
Nortel Communication Server 1000
Main Office Configuration Guide for SRG 50
NN43001-307 02.02 Standard
Release 5.0 3 December 2007
Copyright © 2005-2007, Nortel Networks
.