[cisco-voip] Routing calls from PRI inbound MGCP to outbound MGCP T1 CAS

[Jonathan Charles]

Is it possible to try this on two different gateways? One MGCP and one H.323,
just for testing?

I think you are running into a problem on the CCM side that it is trying to
nail up an IP call between the same IP (one the MGCP interface, the other
the H.323 interface) and it chokes.

Another possibility is to try it out different interfaces... put the MGCP on
one subnet, the H.323 on another, this way you will have different IP end
points for the RTP stream...

Also, you may want to do a 'show call active voice' or 'show call history
voice brief' and see if the two endpoints are the same...

I am willing to bet that the MGCP gateway and the H.323 gateway have the
same IP on CCM...



JOnathan

On 12/28/06, Wydra, Jason <jason.wydra at berbee.com> wrote:
>
> The PRI and CAS ports both show G711 when they connect. The PRI disconnect
> cause is 41 (temporary failure).
>
> I should also mention that if I place a call from an internal IP phone
> directly to the T1 CAS, the call connects to the IVR no problem.
>
> ________________________________
>
> From: Ryan Ratliff [mailto:rratliff at cisco.com]
> Sent: Thu 12/28/2006 1:53 PM
> To: Wydra, Jason
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Routing calls from PRI inbound MGCP to outbound
> MGCP T1 CAS
>
>
>
> Calls getting dropped on connect are usually a sign of codec
> mismatch.   What is the disconnect cause on the PRI side?
>
> -Ryan
>
> On Dec 28, 2006, at 2:32 PM, Wydra, Jason wrote:
>
> Hello - I am trying to place an inbound call into a 2851 using a MGCP
> controlled PRI. When this call gets to CCM, I have a translation
> pattern that translates the called number to a 4 digit extension on
> my legacy IVR. The 4 digit extension is then sent out a H323
> controlled T1 CAS trunk on the same 2851. I can see the call go
> through when I call the number from my cell phone. It seizes a PRI
> channel and a CAS channel. I hear 1 ring from the IVR and then the
> call disconnects. I can see on the IVR GUI that a channel is also
> seized and it starts to play a greeting. I don't believe the IVR is
> hanging up because I lose my connection while I still see the IVR
> playing a greeting. Any thoughts on how I can fix this?
>
> Thanks,
> Jason
>
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