[SR-Users] Fwd: Call disconnects within 30 seconds

Rahul MathuR rahul.ultimate at gmail.com
Thu Aug 14 08:12:06 CEST 2014


Hello Davy,

My constraint is that I cannot use TCP for this solution.
I am attaching my kamailio.cfg file, please please help me to resolve this
issue as soon as possible (it has already chewed many nights :( )




On Wed, Aug 13, 2014 at 8:50 PM, davy van de moere <
davy.van.de.moere at gmail.com> wrote:

> Hey Rahul,
>
> thank you for your pcap file. Your astpp is indeed not succeeding in
> getting the OK delivered correctly to your pjsua. Also those 400 Bad
> Session Description are no good.
>
> I do see as well fragmented packets passing by, perhaps an easy test would
> be to have everything be sent over TCP. Big sip packets tend to suffer over
> UDP networks. From your sip packets your setup looks quite standard,
> although with a lot of headers (which is fine), so I'ld give it a try with
> sending everything over tcp, t_relay_to_tcp should help you out!
>
> Good luck!
>
>
> --- In reply to ---
> I guess the attachment size was greater than 60Kb thereby getting
> quarentined.
> Re-sending it to you so that this issue could be resolved.
>
>
> 2014-08-12 14:42 GMT+02:00 davy <davy.van.de.moere at gmail.com>:
>
> If your Kamailio setup is close to vanilla, it should do it by default.
>> But Kamailio is a very powerfull tool, it can easily be setup to stop
>> passing over ACKs :)
>>
>> To attempt to answer what explicitly sends along the ACKs, that will most
>> likely be the t_relay function, together with the logic which went before
>> it…
>>
>> A good old tcpdump will most likely enlighten us.
>>
>> Op 12-aug.-2014, om 14:39 heeft Rahul MathuR <rahul.ultimate at gmail.com>
>> het volgende geschreven:
>>
>> Hello Davy,
>>
>> Thanks for writing back..
>>
>> Tonight I'll take the tcpdump on Kamailio box and share the file.
>>
>> Please note that Kamailio and Freeswitch are both on public IP & at
>> Freeswitch param, enable_timer=false is set.
>>
>> Is there any explicit way wherein ACKs can be transmitted to FS ?
>>
>>
>> Thanks in advance !
>>
>>
>> On Tue, Aug 12, 2014 at 1:15 PM, davy van de moere <
>> davy.van.de.moere at gmail.com> wrote:
>>
>>> Are you sure you're getting the ACK correctly to FS?
>>>
>>> FS typically has this behavior when it did not correctly receive a
>>> confirmation of an answer, and after 30 seconds disconnects, as for FS the
>>> call has failed.
>>>
>>> Do you have a trace of the packets?
>>>
>>> grtz,
>>> Davy Van De Moere
>>>
>>>
>>> 2014-08-12 13:37 GMT+02:00 Rahul MathuR <rahul.ultimate at gmail.com>:
>>>
>>>> Hello,
>>>>
>>>> I have an iPhone/Android/Windows 8 based UAC, proxy server Kamailio and
>>>> Sip server FreeSwitch.
>>>> Whenever I call directly from UAC to Sip server, the call gets
>>>> established for as long as I want, however when I use the proxy in between,
>>>> it gets disconnected within 30 seconds. It seems that FS sends a BYE within
>>>> 30 seconds.
>>>>
>>>> I would really appreciate if anybody please guide me where I am going
>>>> wrong in this case ?
>>>>
>>>> --
>>>> Warm Regds.
>>>> MathuRahul
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>> sr-users at lists.sip-router.org
>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>
>>
>> --
>> Warm Regds.
>> MathuRahul
>>  _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> sr-users at lists.sip-router.org
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>


-- 
Warm Regds.
MathuRahul



-- 
Warm Regds.
MathuRahul
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