[OpenSIPS-Users] Dialog Module and Bogus Event 8 in state 2

[Bogdan-Andrei Iancu]

Sven,

thanks for the feedback - I uploaded the patch on SVN.

Best regards,
Bogdan

Sven Schulz wrote:
> Thanks Bogden,
>
> The patch did work. No more bogus events from the same type of call. Im
> using 1.6.3 SVN 7291.
>
> Sven
>
>
> On 1/18/11 9:33 AM, "Bogdan-Andrei Iancu" <bogdan at opensips.org> wrote:
>
>   
>> Hi Sven,
>>
>> The message generating the log is:
>>
>>         NOTIFY sip:10.1.2.52:5060 SIP/2.0
>>         Via: SIP/2.0/UDP 10.1.1.60:5060;branch=z9hG4bKFD1B90
>>         From: 
>> <sip:18148656116 at testsipcore.phonetest.psu.edu>;tag=38988880-C16
>>         To: 
>> <sip:8148636939 at 10.1.2.52>;tag=d5edda48-9c10-424c-b200-8ec1eb8e532c-42505206
>>         Call-ID: f39a000-d30152a9-59-3402010a at 10.1.2.52
>>         CSeq: 101 NOTIFY
>>         Max-Forwards: 70
>>         Date: Fri, 14 Jan 2011 13:43:36 GMT
>>         User-Agent: Cisco-SIPGateway/IOS-12.x
>>         Event: kpml
>>         Subscription-State: active
>>         Route: <sip:10.1.1.82;lr=on;did=4a2.b78cc16>
>>         Contact: <sip:18148656116 at 10.1.1.60:5060>
>>         Content-Length: 0
>>
>>
>> a in-dialog NOTIFY in the early stage of the dialog. Searching for event
>> kpml, found this Event Package for Key Press Stimulus
>> (http://tools.ietf.org/html/draft-ietf-sipping-kpml-07).
>>
>>
>> I made a small patch that should fix the message - could you please test
>> it to see if it works?
>>
>> Thanks and regards,
>> Bogdan
>>
>>
>> Sven Schulz wrote:
>>     
>>> Bogdan, I hope this capture gets formatted correctly when I paste it in.
>>> Apparently Cisco uses NOTIFY to negotiate DTMF-relay. Inside the initial
>>> INVITE is a "Allow-Events: kpml" which the receiving gateway interprets this
>>> as an out-of-band dtmf capability.  Then immediately after the 183, you can
>>> see the NOTIFY coming from the gateway. What you don't see here in this
>>> capture is that once the call is setup and dialog occurs, DTMF tones are
>>> then sent as NOTIFY packets.
>>>
>>> Sven
>>>   
>>>       
>
>
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>   


-- 
Bogdan-Andrei Iancu
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