2 h323 gateways with CMBE

[stevesloat]

I have a Call Manager Business Edition and it has two h323 gateways. Each gateway has a PRI.  If I lose the primary PRI all incomming calls will come in thru the second gateway but I could not dial out. I added a second dial-peer that is VOIP and now the called phone will ring once or twice and then go idle and on the IP phone you will get a fast busy after you hear ringback once or twice. How do I tell the primary gateway to use the PRI of the secondary gateway?

[kking2008]

Rather than pushing the call to first gateway then hop to the second gateway via voip, why don't you setup a route list to fail over to a second route-group when the first group has failed?

[Adrian Saavedra]

Hello,

The best way to achieve that is using Route Groups and Route Lists. Please read about it under the call routing section in this link:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/dialplan.html#wp1044247

How to configure Route Groups and Route Lists:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_0_2/ccmcfg/b03rtgrp.html

Next, you only have to point your route patterns to the Route List created. You should change a couple of service parameter in CUCM:

Clusterwide parameters for Route Plan:

     Stop routing on unallocated flag and Stop routing on user busy flag set to false.

Hope it helps, please rate if it does.

- Adrian.