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Bandwidth Management Page 57 of 258
Main Office Configuration for Survivable Remote Gateway 50 Configuration Guide
Zones
Bandwidth Management Zones are configured for each endpoint on a Call
Server. The Network Bandwidth Zone number determines if a call is an
intrazone call or an interzone call. Once that is determined, the proper codec
and bandwidth limit is applied to the call.
All of the endpoints on one Call Server are configured with Zone number to
identify all of the endpoints as being in a unique geographic location in the
network. In addition, Virtual Trunks are configured with a Zone number that
is different from the endpoint Zone numbers in the Call Server.
Codec selection occurs as described in “Codec selection” on page 53.
Configuration rules
There are four configuration rules for Bandwidth Management, as follows:
1 Each Call Server in the network must be configured with a unique VPNI,
with the only exception noted in point 2, next.
2 Branch office (MG 1000B and SRG) Call Servers must be configured
with the same VPNI as that of the main office Call Server with which
they register.
3 Nortel recommends that all the endpoints on a Call Server (IP Phones and
Voice Gateway Media Cards) be configured with the same Zone number.
4 Virtual Trunks must be configured with a different Zone number than the
endpoints.
Network Planning
Before configuring Bandwidth Management in a CS1000 network, follow
these steps:
1 Choose unique VPNIs for all Call Servers in the network.
2 Choose unique Bandwidth Zone numbers for all Call Servers in the
network. These are used when configuring the endpoints (telephones and
gateways) on the Call Server.