Nortel Networks Remote Gateway 50 - Manual (Page 119)

Bandwidth Management Page 119 of 258
Main Office Configuration for Survivable Remote Gateway 50 Configuration Guide
Abnormal case - calls originating using UDP, but
terminating using CDP
Figure 34
Call flow for Scenario 2 - local call dial UDP
1 The branch office user dials 6-395-3456. The system transmits 395-3456
to the NRS. The NRS checks its provisioning, and determines that all
calls are to be sent to the main office; it directs the call to the main office.
2 The branch office sends the call to 395-3456 to the main office.
3 The main office determines that this is to another branch office, using
CDP. The system deletes the HLOC and transmits 3456 to the NRS. The
NRS checks its provisioning, and determines that all calls to 3456 from
this CDP region are to be sent to branch office A2; it directs the call to
the branch office.
4 The main office sends the call to 3456 to the branch office. The branch
office rings set 3456.