VoIP failover scenario

[r.samuelpeter]

I have following setup,

PBX--VoIP GW-------IPWAN---Callmanager cluster.

VoIP gateway is MGCP . PBX is configured such a way that VoIP trunk is first option and PSTN is the second option for making long distance calls.

If VoIP link fails ( such as Callmanager is down or IPWAN between VoIP GW and CM cluster is down) is there a way VoIP gateway shut down the tie line between VoIP GW and PBX ?? PBX can route the call to PSTN correctly if the controller port is down.

Thanks

Robert

[anup.anand]

Yes, you can use the Advanced Voice BusyOut feature for this.

Check this link for more details

http://www.cisco.com/en/US/products/sw/iosswrel/ps1834/products_feature_guide09186a00800801f3.html

[r.samuelpeter]

Thanks for the response. Will these Monitor probes generate additional traffic on the WAN ?