Nortel Networks NN43001-314 - Manual (Page 384)

384 Appendix C On-net dialing plan configuration examples
Figure 120
Coordinated Dialing Plan (CDP)
Call Scenarios
This section describes the following call scenarios, all based on Figure 120
"Coordinated Dialing Plan (CDP)" (page 384) :
• "From main office to Branch Office" (page 384)
• "From Branch Office to main office" (page 385)
• "When the Branch User telephone is in Local Mode" (page 385)
From main office to Branch Office In this scenario, the following occurs:
• DN 3001 (in the main office) or 3002 (in the Branch Office) dials DN
3101 (a TDM telephone in the MG 1000B).
• The main office Call Server recognizes the first two digits "31" as a CDP
DSC. It accesses the RLI appropriate for that steering code and uses
the Virtual Trunk specified for that route.
• The NRS is queried for a destination node IP address with which to
route the call over the Virtual Trunk. Because "31" is registered with the
Branch Office, the Branch Office node IP address is returned.
• The MG 1000B Core terminates the incoming Virtual Trunk call to DN
3101.
• The Voice Gateway channel in the Branch Office provides IP-TDM
transcoding.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314 01.02 Standard
Release 5.0 20 June 2007
Copyright © 2007, Nortel Networks
.