Nortel Networks SRG 50 NN43001-307 - Manual (Page 75)

Dialing plan examples 75
The users in both the main office and the SRG dial only the DN for all
telephones in the main office and the SRG in both Normal Mode and
Local Mode.
For more information on configuring the main office and NRS, see Branch
Office Installation and Commissioning (NN43001-314) and IP Peer
Networking Installation and Commissioning (NN43001-313). For more
information on configuring the SRG, see SRG50 Configuration Guide
(NN40140-500).
Option 2
DN ranges in the main office and SRG overlap; DNs for SRG IP Phones
are the same in Normal and Local Mode
In this configuration, the SRG DN overlap with the main office DN. However,
since SRG does not support Vacant Number Routing (VNR), a user
registered to the SRG must dial a destination code before the main office
DN to call a main office telephone.
To call an SRG IP Phone in either Normal or Local Mode, SRG and main
office users need to dial only the DN for the SRG IP Phone. SRG IP Phone
calls are forwarded with the main office Private Network ID/destination code
appended to the BUID, which allows the call to flow to the VoIP trunks for
the main office.
This configuration is not a true CDP dialing plan. A destination code is
added by the system to properly direct the SRG IP Phone calls, since the
start digits of the DN are not unique for SRG and main office users. Users
dialing a telephone registered at the main office must dial a destination code
before the main office DN. This plan allows all systems on the network to
appear to be available within a range of numbers.
Since the SRG DN range is limited to about 200 DN, this configuration
only works if SRG dialing to the main office is limited to the redirected IP
Phones and to a small number of main office telephones, such as to a
central attendant and voice mail lines.
See Figure 20 "CDP Option 2" (page 76) shows this CDP option.
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
.