Avaya PBX as H323 Gateway in CUCM

[ashishsurve]

Hi

 I have setup where avaya G450 gateway is added as H323 gateway. My calling is working fine both way but the issue is its connecting with G711 instead of G729. I checked thw codec by pressing "?" button on my cisco 7942 phone.

This is what i see on avaya gateway.

LIST TRACE

time            data

20:22:58     Calling party trunk-group 9 member 1    cid 0x114

20:22:58     Calling Number & Name 4102 NO-CPName

20:22:58     active trunk-group 9 member 1    cid 0x114

20:22:58     dial 1100

20:22:58     ring station      1100 cid 0x114

20:22:58     G729 ss:off ps:20

             rgn:2 [10.144.246.229]:16794

             rgn:1 [10.34.179.251]:2052

20:22:58     xoip options: fax:Relay modem:off tty:US  uid:0x5001d

             xoip ip: [10.34.179.251]:2052

20:23:00     idle trunk-group 9 member 1    cid 0x114

20:23:42 TRACE COMPLETE trunk-group  9 cid 0x0

Kindly advise!

Regards

[Suresh Hudda]

Dear,

I think You should add a sip trunk pointing to G450 gateway instead of adding itself as H323 gateway in cucm. And for G729 calls you should have transcoder/pvdm on Cisco router and that should be register on cucm.

Suresh

[Chris Deren · Accepted solution]

What is the region configured on the GW and the Cisco phone? What codec is defined between those regions? Define the regions to use G729 between each other and ensure Avaya can support it and that should be it.

Chris

[ashishsurve]

yes i checked the region and it was resolved. Thank for putting it in right direction.