[OpenSIPS-Devel] "Early cancel" issue in the tm module

Maxim Sobolev sobomax at sippysoft.com
Wed Dec 23 14:05:12 CET 2015


Sorry, Bogdan, please disregard my previous message. After closer look
at the log it seems that my initial diagnosis was not quite correct.
The problem appears that provisional response generation is broken
somehow, so that the originating UA keeps sending INVITEs over and
over again and could not initiate outbound CANCEL at all until 180
comes in.

00:00:07.297/GLOBAL/alice_ua: RECEIVED message from 127.0.0.1:5060:
SIP/2.0 180 Ringing

I am investigating as to what could be a problem, looks like this
condition might have been hidden and just exposed now. It seems that
it has nothing to do with the change in question.

On Wed, Dec 23, 2015 at 4:20 AM, Maxim Sobolev <sobomax at sippysoft.com> wrote:
> Hi Bogdan, that patch is not fully functional. Yes, it did restore
> INVITE re-transmits, so that the second 100 Trying is stimulated
> properly, but the CANCEL to the egress call leg is not generated until
> 180 Ringing response comes in. You can see full log here:
>
> https://s3.amazonaws.com/archive.travis-ci.org/jobs/98496601/log.txt
>
> See Call-ID: a0f27d0745c1a6b52348900c67362be8 at 172.17.0.79 for an example:
>
>
> On Mon, Dec 14, 2015 at 5:31 PM, Bogdan-Andrei Iancu
> <bogdan at opensips.org> wrote:
>> Maxim,
>>
>> Please check the attached patch for 1.11
>>
>> Regards,
>>
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developer
>> http://www.opensips-solutions.com
>>
>> On 14.12.2015 22:46, Maxim Sobolev wrote:
>>>
>>> Thanks Bogdan, I will be working on test case this week. I'll drop you
>>> a note when it's ready.
>>>
>>> On Fri, Dec 11, 2015 at 8:42 AM, Bogdan-Andrei Iancu
>>> <bogdan at opensips.org> wrote:
>>>>
>>>> Roger that, thanks for the detailed explanations - let's be consistent in
>>>> handling the INVITE cancelling, in terms of letting all the time the
>>>> final
>>>> UAS to generate the final reply (if still alive).
>>>>
>>>> Best regards,
>>>>
>>>> Bogdan-Andrei Iancu
>>>> OpenSIPS Founder and Developer
>>>> http://www.opensips-solutions.com
>>>>
>>>>
>>
>
>
>
> --
> Maksym Sobolyev
> Sippy Software, Inc.
> Internet Telephony (VoIP) Experts
> Tel (Canada): +1-778-783-0474
> Tel (Toll-Free): +1-855-747-7779
> Fax: +1-866-857-6942
> Web: http://www.sippysoft.com
> MSN: sales at sippysoft.com
> Skype: SippySoft



-- 
Maksym Sobolyev
Sippy Software, Inc.
Internet Telephony (VoIP) Experts
Tel (Canada): +1-778-783-0474
Tel (Toll-Free): +1-855-747-7779
Fax: +1-866-857-6942
Web: http://www.sippysoft.com
MSN: sales at sippysoft.com
Skype: SippySoft



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