[cisco-voip] CUCM SIP trunk and Acme VM edition

[Mark Holloway]

Interesting, so they don't support G729 either? 


On Sep 17, 2012, at 11:06 PM, Tim Smith wrote:

> Hi Guys,
> 
> I have a bit of an integration problem here.
> 
> Our SIP provider does not currently support RFC2833 DTMF.
> Instead they use only in-band audio tones.
> 
> We are running an Acme Packet SBC virtual edition which does not have DSPs and cannot convert the RFC2833 to audio tones.
> Inbound DTMF from audio to RFC2833 works fine with an MTP.
> 
> Is there any way with CUCM 8.6 and an IOS transcoder (no CUBE or IPIPGW) that we could do this conversion?
> We did try G729 to G711 transcoding, and it did not work.
> I'm assuming CUBE works because it terminates both legs of the call and is aware of what DTMF is supported on both side.
> 
> We will have RFC2833 from the provider in a month or so, so that will be the best fix. Just wondering if there is any interim fix.
> I think we are out of luck, but thought I would ask.
> 
> Cheers,
> 
> Tim.
> 
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