CUE, SIP trunk and Transcoder

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Dec 18th, 2008
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Hi all,

I have a problem with my Cisco Unity Express.

It works great when I call it from internal calls, but I can't call it from outside.

We use a sip trunk to made calls from and to outside.

So if I try to made a call to a users with a ip phone, its works great.

But it doesn't work when I try to join the directory number of the cti port corresponding to the CUE.

I think it's a problem of transcoding, because the trunk sip use g729 and cue g711...

But I configured a transcoder, and it works for remote site which call in g729, but it doesn't work with ouside calls.

Is someone have a idea?


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j.gimbert Fri, 12/19/2008 - 01:01
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I forgot to say that I use a CCM v5.1 and a VG 2851 with CUE 3.0, not a CME...

I try on the VG

voice service voip

allow sip-to-sip

but it doesn't work.

Nicholas Matthews Sat, 12/20/2008 - 05:36
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Try making it so that the region to region codec for an outside call to CUE uses G711. You may need to create a new region for CUE to do this.

jerome.gimbert Tue, 01/06/2009 - 04:46
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Ok,I created a new region for the CUE. I will try to play with the region to region codec.

jerome.gimbert Tue, 01/06/2009 - 04:57
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I tried and it doesn't work.

The Sip Trunk is on a region and the CUE is on another one.

I tried to configure the transcoder on the same device pool than the sip trunk and than the CUE, without result.

I tried to change the codec between sip trunk region and CUE region, without result.

I really don't know how to do ...


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