I have a CUCM 6.0 and 2 ISR2811 acting as H.323 gateways in 2 different branch offices. I have configured a Route Group that with this 2 GWs. The goal is to redirect calls to a second gateway if all the ports in the first one are busy. It's notworking. POTS dial peers are configured in each GW for each dial pattern. I also tried DPs with preference like the folowing ones
dial-peer voice 7 pots
!First dial peer, if busy redirects call to dp 71
dial-peer voice 71 voip
!Second dial peer, redirects call to second GW.
session target ipv4:10.0.0.1
it's not working. Can someone find the reason?
One option as already discussed is to use a dial-peer on the 1st router that points to the second in the event of failover.
There are also 2 CUCM service parameters that can effect how CUCM will hunt/failover with H323 route groups.
"Stop Routing on Out of Bandwidth Flag"
"Stop Routing on User Busy Flag"
Setting these parameters to false will allow failover to a second route group member if the 1st cannot complete the call.