SIP Trunk incoming call to CUE AA, transfer to IP phone - one way audio

Unanswered Question
Jan 17th, 2009
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When incoming call from SIP trunk to Unity express Auto-Attendant, after transfer to a SCCP IP phone, the caller can hear the transferred phone but not the other way. However, if transfer to a SIP extension, everything work fine.

System running on UC520 Ver 12.4(11)XW

Any idea how this can be solve?


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Gerald Chong Sat, 01/17/2009 - 22:42
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Thanks Nick.

I upgraded to 12.4(22)T, and all sorted.

Look like is a bug on XW9.


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