[Freeswitch-users] sofia: disable support for UPDATE message in SIP Accept header

Wed Jan 25 17:36:31 MSK 2012

+1
+1

2012/1/25 Michael Jerris <mike at jerris.com>:
> I know sofia will respond properly to session timers like this.. Its kind of a bother to pull a pcap up to look at but if you post the text of the sip (like that from freeswitch logs with siptrace enabled) I would take a look.
>
> On Jan 25, 2012, at 6:40 AM, Michal Zubáč wrote:
>
>> Hi.
>>
>> I tried all the things you advised me, but with no effect. When provider
>> send us re-INVITE, FreeSwitch doesn't react to it at all.
>>
>> Traces for test call are here:
>>   PCAP: http://et5.comgate.cz/zubacm/voice/dt_10m_4_sip.zip
>>   TEXT SUMMARY: http://pastebin.com/BgPUfmuc
>>
>> I looked into FS source code and I didn't see anything what looks like
>> response to SIP re-INVITE message. It looks like FS can't process any of
>> incoming RFC 4028/3311 mechanisms.
>>
>>
>> I solved this issue by instructing FS to send re-INVITEs from our side
>> before provider does it, effectively avoiding processing provider's
>> re-INVITEs.
>>
>> Michal Zubac
>> ComGate Interactive s.r.o.
>>
>>
>> On 23.1.2012 20:57, Kristian Kielhofner wrote:
>>> Michal,
>>>
>>>   I can barely read these parsed out SIP traces (yuck) but from the
>>> skimming I did it looks like you'd benefit from a few changes:
>>>
>>> - Explicitly disable session timers in your Sofia profile
>>> - Set  ignore_display_updates=true (so FreeSWITCH doesn't send an
>>> UPDATE - won't help in this case but a good thing to do)
>>> - Request your provider uses re-INVITEs instead of UPDATE
>>>
>>> On Mon, Jan 23, 2012 at 11:24 AM, Michal Zubáč<michal.zubac at comgate.cz>  wrote:
>>>> I don't have "enable-timer" or "session-timeout" variables set in Sofia
>>>> profile, so maybe defaults? I think these are what you are referring to.
>>>>
>>>> SIP trace is at
>>>>   http://pastebin.com/DTQU3nMr
>>>>
>>>> Yes, provider offered us re-INVITE method as an alternative for UPDATE.
>>>> Would this one work? What do I have to set up?
>>>>
>>>> Michal Zubac
>>>> ComGate Interactive s.r.o.
>>>>
>>>>
>>>> On 23.1.2012 15:51, Kristian Kielhofner wrote:
>>>>> What are your Sofia profile session timer values set to?
>>>>>
>>>>> Can you post a complete SIP trace?
>>>>>
>>>>> Can your provider send a re-INVITE instead of UPDATE?
>>>>>
>>>>> On Mon, Jan 23, 2012 at 8:40 AM, Michal Zubáč<michal.zubac at comgate.cz>    wrote:
>>>>>> Hello.
>>>>>>
>>>>>> I'd like to remove UPDATE value from SIP Accept header when creating SIP
>>>>>> calls. We're sending it in INVITE message and our provider uses that for
>>>>>> in-call keep-alive checks every 10 minutes.
>>>>>> FreeSwitch doesn't respond to that, so our provider disconnects RTP and
>>>>>> call is dropped. According to RFC3311 we can indicate that we don't
>>>>>> support this by not sending UPDATE in Accept header. Is this gonna help?
>>>>>>
>>>>>> Is there any way to drop that from SIP headers from dialplan? Or do I
>>>>>> have to change source code?
>>>>>> Or better, is there any other (cleaner) way to resolve this?
>>>>>>
>>>>>> Regards
>>>>>>
>>>>>> Michal Zubac
>>>>>> ComGate Interactive s.r.o.
>>>>>>
>>>>>> _________________________________________________________________________
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>>>>>> http://www.freeswitchsolutions.com
>>>>>>
>>>>>> 
>>>>>> 
>>>>>>
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>>>>>>
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>>>>>
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>>>>
>>>> 
>>>> 
>>>>
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>>>
>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>
>
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>
> 
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-- 
Kristian Kielhofner