48 Dialing Plan configuration
Configuring the dialing plan for PSTN access to SRG users inNormal Mode

Preparing to configure the dialing plan

Before configuring the dialing plan for PSTN access to SRG users in Normal
Mode, you must complete the following steps:
At the main office, configure the Virtual Trunkto enable calls originating
on SRG IP Phones in Normal Mode to reach the branch office. See
IP Peer Networking Installation and Commissioning (NN43001-313)
for details.
At the main office, configure trunks foraccess to the PSTN.
Atthe branch office, configure the Virtual Trunk to enable calls originating
on SRG IP Phones in Normal Mode to reach the branch office. See
IP Peer Networking Installation and Commissioning (NN43001-313)
for details.
At the branch office, configure trunks for access to the PSTN.
At the main office, configure the branch office zone properties in LD
117, excluding the ZACB and ZDP properties. See IP Peer Networking
Installation and Commissioning (NN43001-313) for details.
At the main office, configure the routing forPSTN access.
At the branch office, configure the routing to enable calls made from
TDM or IP Phones in Local Mode to access the PSTN.
Configure IP Phones with the same zone number at both the main office
and the branch office. Nortel also recommends that the Prime DN be
the same at both the main and the branch offices. If different DN are
configured, the dial-in numbers change when the branch officeis in
Local Mode.
Assign unique individual DN as Branch User Identities (BUID) to
Automatic Call Distribution (ACD) telephones.

Configuring the dialing plan

The steps to configure the dialing plan for SRG PSTN access are:
At the main office—see Procedure 3 "Configuring the main office" (page
49).
1. Configure the ZACB property for the branch office zone.
2. Configure the ZDP proper ty for the branch office zone.
3. Configure the Route List Index.
4. Configure the ESN SpecialNumber and DigitManipulation.
Nortel Communication Server 1000
Main Office Configuration Guide forSRG 50
NN43001-307 02.02 Standard
Release 5.0 3 December 2007
Copyright© 2005-2007, Nor tel Networks
.