Bandwidth Management Page 97 of 258

Table 6 describes the network configuration and the steps that a call takes during its setup.

Table 6

Configuration details for the general case

 

Call progress

Configuration detail and call progress

Region

steps

during call setup

 

 

 

1, 2, 3

 

UDP used for all calls within the region.

 

 

 

1, 2, 3

 

UDP used for region to region calls.

 

 

 

1, 2, 3

 

Prefixes for branch offices for regular calls are

 

 

required for all branch offices. May have additional

 

 

prefixes for E-911 calls, if required, or may share

 

 

prefixes.

 

 

 

1

1

All branch offices are provisioned at the NRS to route

 

 

all outbound calls (from the branch office) through

 

 

the main office. (NRS tandem configuration).

 

 

 

1

2

Main office sends all UDP calls to destinations that

 

 

are not its own branch office to the NRS with

 

 

unchanged dialled digits.

 

 

 

1

3

Main office sends all UDP calls to destinations that

 

 

are its own branch office to the NRS with a specific

 

 

gateway prefix in front of the dialled digits.

 

 

 

1

4

All branch offices delete the prefix and any LOC

 

 

codes, and terminate the calls. May be to a local set

 

 

or to a trunk.

 

 

 

2,3

 

Similar call setup steps take places for calls within

 

 

region 2 and 3.

 

 

 

Main Office Configuration for Survivable Remote Gateway 50 Configuration Guide

Page 97
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Nortel Networks Remote Gateway 50 manual Bandwidth Management Page 97