[cisco-voip] QISG over SIP between CUCM and IOS TDM Gateway

[Drewbles]

Hi Robert,

Did '*isdn global-disconnect*' resolve your issue?


Cheers,
Drew.


On 19 December 2013 12:09, Justin Steinberg <jsteinberg at gmail.com> wrote:

> add '*isdn global*-*disconnect' *under your D channel (e.g. int
> s0/0/0:23) for your QSIG T1s
>
>
> On Wed, Dec 18, 2013 at 8:57 AM, Robert Schuknecht <rschuknecht at gmx.de>wrote:
>
>> Hi all,
>>
>> I am trying to setup a QSIG over SIP connection between a CUCM and a IOS
>> TDM
>> Gateway. Calls are working so far. But when an IP-Phone tries to end a
>> call
>> it seems to be that the signaling from CUCM to the Gateway is not
>> understood
>> by the Gateway.
>>
>> When I hang up on the IP-Phone the CUCM sends some SIP INFO packets and
>> after 20-30 sec CUCM actually sends a SIP BYE message to Gateway. I
>> captured
>> the SIP Traffic between the CUCM and the Gateway and I saw in Wireshark
>> that
>> there are DISCONNECT messages in the QSIG over SIP INFO packets. I assume
>> these DISCONNECT messages are not correctly understood by the Gateway. The
>> Gateway only ends the call when the CUCM sends a SIP BYE Message.
>>
>> I have tried CUCM Version 8.6.2 and 9.1.2 and some IOS 12.4 and 15.2
>> Versions.
>>
>> Regarding my configuration:
>>
>> Enabled ISO QSIG on SIP Trunk pointing to the Gateway
>> Defined switch-type primary-qsig
>> Defined qsig decode under voice service voip
>> Configured signaling forward unconditional under voice service voip and
>> also
>> on the dial-peers
>>
>> So, my questions are:
>>
>> Should QSIG over SIP work between CUCM and a IOS Gateway?
>> Can anybody provide some working sample configurations? (Could not find
>> anything useful on CCO)
>>
>>
>> Just for completeness, I have attached the relevant Debug output.
>>
>>
>> Thanks in advance,
>>
>> Robert
>>
>>
>>
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>>
>>
>
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