[cisco-voip] CUCM 6.1 and SIP Trunking

[David Martin]

sorry, fixed it now. the software MTP on CUCM was not working correctly.

thanks to Cristobal and Nicholas for their prompt assistance.

Regards

David

On 25 July 2011 09:39, David Martin <adavidm at gmail.com> wrote:

> All,
>
> I am trying to set up a SIP trunk between CUCM 6.1 and Freeswitch. I only
> need calls outbound from Cisco to Freeswitch at the moment but am having
> some difficulties.
>
> The Cisco side never sends an SDP, either in the INVITE or the ACK, and
> Freeswitch needs this to operate. I have tried using "require media
> termination point" and "disable early media" options but there appears to be
> no difference, which is strange. I include a pastebin of the conversation:
>
> http://pastebin.com/T3eqms8N
>
> and a couple of screenshots of the CUCM config for the trunk.
>
> http://img200.imageshack.us/img200/9405/siptrunk.png
>
> http://img191.imageshack.us/img191/3863/sipprofile.png
>
> Any thoughts on where to start looking? I was wondering if CUCM will
> continue to attempt the call if there is a problem with the MTP( I am using
> software MTP on CUCM at the moment). If this is the case then I can see why
> the SDP does not appear in the INVITE (assuming the MTP is broken), but not
> why it does not appear in the ACK.
>
> Thanks in advance.
>
> David
>
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