[cisco-voip] Inbound SIP Calls routing over QSIG link

[Nick]

Hi Bob

Ok, I have IOS transcoder and IOS MTP resources setup, where should I apply
these, to the MGCP gateway.

Regards

Nick

On 15 February 2011 21:51, Bob Zanett (US) <bob.zanett at us.didata.com> wrote:

>  Going between SIP and MGCP – you will most likely require an MTP
> resource.  A transcoder will perform that but you may not require a full
> transcode resource.
>
>
>
> DTMF:   Usually DTMF has to be converted from RFC2833 (typically used) to
> MGCP.  There is a command you can place on the MGCP gateway to allow it to
> understand RFC 2833 DTMF – search on Cisco for MGCP and RFC2833.  However,
> you would need to validate that all potential endpoints within your Cisco
> environment can also handle it – otherwise MTP again.
>
>
>
> Codec: I would assume your codec is remaining the same either G711 or
> G729.  If codec changes, then yes you would require a transcode resource.
>
>
>
> Bob
>
>
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *ROZA, Ariel
> *Sent:* Tuesday, February 15, 2011 3:19 PM
> *To:* Nick; cisco-voip at puck.nether.net
> *Subject:* Re: [cisco-voip] Inbound SIP Calls routing over QSIG link
>
>
>
> Nick,
>
>
>
> A Resources Unavailable message sounds like you need to enable the use of
> transcoding for the call.
>
>
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Nick
> *Sent:* martes, 15 de febrero de 2011 01:24 p.m.
> *To:* cisco-voip at puck.nether.net
> *Subject:* [cisco-voip] Inbound SIP Calls routing over QSIG link
>
>
>
> Hi All
>
>
>
> I'm trying to route inbound calls from SIP trunks through CUCM to another
> PBX connected with QSIG, I have CUCM 8.0.3, with QSIG links to a IPC
> dealerboard system and also a Nortel CS1000 PBX, these are set up as MGCP in
> CUCM.
>
>
>
> I also have SIP trunks for PSTN providing both inbound and outbound
> calling. The issue I have is when I route inbound calls from the SIP trunks
> to CUCM and across the QSIG links to the PBX's, the call will not complete
> and I get Resources Unavailable, Unspecified on the debug on the gateway, I
> have also taken a SIP trace and get a 503 Service Unavailable from CUCM to
> the SIP trunks for the same call.
>
>
>
> Has anyone successfully done this before and can I route SIP to Qsig or
> would I need a CUBE even though its going through CUCM.
>
>
>
> I have attached the debug and SIP trace.
>
>
>
> Any help would be greatly appreciated as this is rather urgent now.
>
>
>
> Regards
>
>
>
> Nick
>
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