[cisco-voip] Sip trunk problem

[Nick Matthews]

Alternatively debug your dial peers and make sure you're  hitting what
you think you are.  And then check the region settings between the CCM
SIP trunk and the phone region, and make sure your codecs are good.
After that, make sure you have an MTP in the MRGL of your SIP trunk
because CCM 4.x will require it.  If you're trying to use G.729, make
sure you have an MTP that can do G.729 (hardware or software on a
router, not CCM itself).  My strategery would lead towards a
codification problem.

-nick

On Thu, Feb 11, 2010 at 4:06 PM, Mark Holloway <mh at markholloway.com> wrote:
> Try setting codec transparency on your router and see if inbound works.
>
> voice class codec 1
>  codec preference 1 transparent
>
>
>
>
> On Feb 11, 2010, at 11:53 AM, Mirko Maffioli wrote:
>
>> I've two trunk sip on my  voice gateway (2801): one directed to my callmanager 4.2 (very old version) and one directed to my carrier voip.
>>
>> When i made an outbound call everything works (with codec g711, i don't know why since in the dial-peer i wrote a voice class with g729 with high priority).
>> When i try an inbound call my phone ring but audio doesn't works.
>>
>> I think that the problem is in the callmanager - voicegateway trunk since if i connect a phone directly to the 2801 (with the cme configuration) everythings works fine.
>>
>> Do you have some ideas?
>>
>> Bye
>> Mirko
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>
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