CUCM 7.1.3 SIP Trunk

Unanswered Question
Jan 20th, 2010
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I have the following problems:

I integrated  Avaya Communication Manager 8730 with CUCM 7.1.3 throught a SIP trunk between them.

All it´s working fine but occasionally when a Cisco IP Phone does a tranfer to Avaya phone the user of avaya phone doesn`t listen nothing, the call is made betwwen both endpoint but the Avaya user don't listen nothing. Why it can be?

I show the way which follow the call:

PSTN-->Avaya-->SIP Trunk--> Cisco(TransferCall)-->TrunkSIP-->Avaya

The call enter by the PRIs in Avaya. In Avaya has been created a pattern which all it arrive from DIDs of Avaya go to Cisco; and in Cisco the call is transfer again to Avaya.

I attached a file, one picture of RTMT with the SIP Trunk activity.

Thanks for all.

A greeting.

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KonradStepniewski Wed, 01/20/2010 - 06:55
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I would start SIP tarces on CM and Avaya side to check what is going on. You can easily comapre sucessful and problematic call.


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