CUBE redundancy & SIP-Trunk errors

Unanswered Question
Apr 15th, 2010
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we have a sip-trunk to our provider for outgoing pstn calls.

Our config is:    UCM7.0  <->   H.323   <->    CUBE    <->    Provider (SONUS SIP Gateway)

When i do an external call (e.g. from my mobile phone) to my ip phone over the sip-trunk - my ip phone rings. But when i anwer the call, my mobile phone still wants to connect the call. It seems, that my mobile doesn't get the information that the call is connected.

When i answer the call with my ip phone, in this moment, my cube sends an SDP "486 busy out" over the sip trunk to my provider.

Any ideas?

CUBE redundancy:

My goal is, to setup two CUBE's with hsrp. Is it possible to use the hsrp ip address for sip signaling? If yes, which commands are important?


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