Nortel Networks SRG 50 NN43001-307 User Manual
Page 134
134
Bandwidth Management
Region
Call progress
steps
Configuration detail and call progress
during call setup
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.
Differences when every branch office HLOC is shared with the main
office
Table 11 "Provisioning details for this case" (page 134)
shows the
configuration when the branch office HLOC is shared with the main office.
Table 11
Provisioning details for this case
Region
Provisioning detail
1
Provisioning on the main office requires parsing to only normal LOC
identification and HLOC deletion.
1
LOC values that are on branch offices may be provisioned as
extended LOC (> 3 digit codes).
1
The DMI for the branch office LOC inserts a gateway routing prefix in
front of the number.
2,3
Similar configuration, as above, applies to regions 2 and 3.
Call between two branch offices associated with the same main office
The following scenarios describe calls between two branch offices that
belong to the same main office. the different scenarios described below
vary in the manner in which the HLOC is architected; branch offices have
same HLOC as the main office, branch offices have a different HLOC than
the main office and so on.
Every branch office HLOC is shared with the main office
In the following example, the HLOC of all the branch offices and the HLOC
of the main office are all the same. See
Figure 45 "Call flow for Scenario 1 -
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
.