CVP standalone SIP transfer

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Nov 20th, 2009
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Hi all,

in a cvp standalone deployment , i'm trying to transfer a call from CVP to a Cisco SIP phone. However when the transfer element is reached the call disconnects. The call flow is the following:

Cisco ip phone-->Corporate Call Manager-->Voice gateway-->CVP VXML Server (transfer element)

A sip trunk to the gateway is configured on the call manager.

i'm attaching the configuration of the Voice Gateway,

your advice is appreciated,


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david.macias Fri, 11/20/2009 - 03:51
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Can you reach the SIP device directly from the IP phone without going through CVP?


fabien.damien Fri, 11/20/2009 - 03:59
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Hi David,

From a CME softphone configured on the gateway yes. Note that the transfer is successful in CVP comprehensive mode.

david.macias Fri, 11/20/2009 - 04:06
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From your call flow I don't see how CME comes into the picture, can you make a call from ip phone > corp CM > VXML GW > SIP device?


fabien.damien Fri, 11/20/2009 - 04:41
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CME is configured on the gateway. The end sip device is an ip phone on the corporate call manager so i can not simulate a call from corporate ccm to an ip phone connected to it by passing through the gateway. The call will reach the other phone directly using sccp.

I think the problem is with CVP.


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