[SR-Users] Question about sip call setup : three-way handshake

[Giovanni Maruzzelli]

On 21 June 2017 at 18:42, Abdoul Osséni <abdoul.osseni at gmail.com> wrote:

> Yes, I think PRACK method can help me.
>

Check your UACs support PRACK... Not all clients do it well...

-giovanni



>
> Thanks.
>
> Regards
> Abdoul.
>
> 2017-06-21 14:20 GMT+02:00 Mititelu Stefan <stefan.mititelu92 at gmail.com>:
>
>> Maybe PRACK, RFC 3262, is what you are looking for?
>>
>> ---
>> Stefan
>>
>> On Jun 21, 2017 2:46 PM, "Abdoul Osséni" <abdoul.osseni at gmail.com> wrote:
>>
>> Hello,
>>
>> During three-way handshake (SIP call setup - INVITE-200 OK - ACK) and
>> before generating or sending the final 200 OK call, is there a way to
>> confirm the caller is still available (no network issue)?
>>
>> I want to detect broken connections (ex. the uac uses 3G network) before
>> generating/sending/forwarding the final 200 OK.
>>
>> Thanks.
>>
>> Regards
>> Abdoul
>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>
>
> --
> Abdoul OSSENI
> Ingénieur Réseaux et systèmes chez THALES
> Co-Fondateur de ON SERVICES
> Tél : +33 601 135 167
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>


-- 

Sincerely,

Giovanni Maruzzelli
OpenTelecom.IT
cell: +39 347 266 56 18
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20170621/926bb327/attachment.html>