Page 140 of 258 Alternative Call Routing for Network Bandwidth Management
Figure 45
Illustration showing digits dialed and outpulsed with Alternative Call Routing for NBWM
1IP Phone User A in the MO zone dials IP Phone B in the BO2 zone (DN 3121) (action labeled 1 in Figure 44 on page 138).
2The main office Call Server determines there is insufficient bandwidth between the two zones.
3The Call Server inserts the ALTPrefix configured for the MO zone prior to IP Phone B’s telephone number. The rebuilt number contains the ALTPrefix.
Example: ALTPrefix assigned is 777. The dialed number becomes 777 3121.
4The call is routed by CDP or VNR to the outgoing route using an RLI.
Example: 7773 is a steering code, translated to go to an RLI where there is one entry, a PSTN trunk route.
