CCM : SIP and H323 trunk : Call Disconnected after Holding

Unanswered Question
May 13th, 2008


I use CCM6 that use SIP trunk to a Gateway.

This Gateway use another H323 trunk to another voice gateway.

The schema is :CCM <-SIP<->GatewayA <-H323-> VoiceGatewayB

The two parts can call between them.

But The CCM'user cannot transfer really the call nor hold it.

If it push the button hold, the distant side hear nothing, and if the CCM user get back the Holded Call, he hear nothing.

And after 10 seconds the call is disconnected automatically.

The MTP is already configured.

Have you any issues?

I have this problem too.
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Anonymous (not verified) Mon, 05/19/2008 - 11:16

This issue can occur when the voice codec for a given device, as defined by its region, is not in the list of codecs supported by the server that streams the MoH stream. Enable G.729 in the IP Voice Media Stream App and restart the IP Voice Media Stream App service to resolve this issue.

Complete these steps:

Select Service > Service Parameters and choose Cisco IP Voice Media Streaming App from the Service pull-down menu.

Under Clusterwide Parameters, select G.729 codec for Supported MoH Codecs.

Click Update.

Select IP Voice Media Stream App under Application > Cisco CallManager Serviceability > Tools > Control Center and click Restart to restart the IP Voice Media Stream App Service.


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