Nortel 1000 Branch of?ce Installation And Commissioning Manual page 72

72 Bandwidth Management
Call scenario
A call is requested from a telephone in VPNI 1/Zone 2 on Call Server A to a
telephone in VPNI 3/Zone 3 on Call Server B. Both zones have Adaptive
Network Bandwidth Management enabled.
1. Call Server A contacts the Network Redirect Server to obtain the
2. Call Server A sends a call setup message to Call Server B, identifying
3. Call Server B determines if there is sufficient bandwidth for the call, and
4. Call Server A checks its bandwidth table to determine if there is sufficient
5. If Call Server A determines there is enough bandwidth available, the call
Both Call Server A and Call Server B must consult their own bandwidth
tables to determine if there is enough bandwidth for the call to proceed.
Figure 17 "Call Progress with Adaptive Network Bandwidth Management"
(page 73)
Copyright © 2007, Nortel Networks
.
address of Call Server B.
the calling telephone's VPNI and zone.
sends back the VPNI and zone of the called telephone.
bandwidth available for the call from Call Server A to Call Server B.
is established; otherwise, alternate treatment is provided in the form
of blocking or rerouting the call.
shows this scenario.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314 01.02 Standard
Release 5.0 20 June 2007