Question about sip call setup : three-way handshake

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How to forward DTMF (in RTP...

Abdoul Osséni

21 Jun 2017 21 Jun '17

4:46 p.m.

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

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Mititelu Stefan

21 Jun 21 Jun

5:20 p.m.

Maybe PRACK, RFC 3262, is what you are looking for? --- Stefan On Jun 21, 2017 2:46 PM, "Abdoul Osséni" <abdoul.osseni(a)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(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

Giovanni Maruzzelli

5:30 p.m.

Maybe an unrelated OPTIONS ? On 21 June 2017 at 14:20, Mititelu Stefan <stefan.mititelu92(a)gmail.com> wrote:

...

-- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18

Abdoul Osséni

9:42 p.m.

Yes, I think PRACK method can help me. Thanks. Regards Abdoul. 2017-06-21 14:20 GMT+02:00 Mititelu Stefan <stefan.mititelu92(a)gmail.com>om>:

...

-- Abdoul OSSENI Ingénieur Réseaux et systèmes chez THALES Co-Fondateur de ON SERVICES Tél : +33 601 135 167

Giovanni Maruzzelli

9:47 p.m.

On 21 June 2017 at 18:42, Abdoul Osséni <abdoul.osseni(a)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(a)gmail.com>om>:

-- 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(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18

Abdoul Osséni

9:53 p.m.

Linphone client seems to not support PRACK method. Any other solution ? Regards Abdoul. 2017-06-21 18:47 GMT+02:00 Giovanni Maruzzelli <gmaruzz(a)gmail.com>om>:

...

On 21 June 2017 at 18:42, Abdoul Osséni <abdoul.osseni(a)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(a)gmail.com>om>:

-- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18 _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)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

Giovanni Maruzzelli

9:56 p.m.

just a thought: OPTIONS, send it asynchronously, not part of INVITE processing, and wait for answer before sending 200 OK... On 21 June 2017 at 18:53, Abdoul Osséni <abdoul.osseni(a)gmail.com> wrote:

...

Linphone client seems to not support PRACK method. Any other solution ? Regards Abdoul. 2017-06-21 18:47 GMT+02:00 Giovanni Maruzzelli <gmaruzz(a)gmail.com>om>:

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

-- Abdoul OSSENI Ingénieur Réseaux et systèmes chez THALES Co-Fondateur de ON SERVICES Tél : +33 601 135 167

-- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18

Abdoul Osséni

27 Jun 27 Jun

1:26 p.m.

Hello, In fact, my goal is to avoid this type of issue (please see below the call flow): I want kamailio sends a CANCEL request to asterisk if the uac lost tcp connection during three-way - I cannot use PRACK method. The ideal would be that Kamailio sends a CANCEL request before asterisk generates the 200OK. Any help will be appreciate. [image: Images intégrées 1] Regards Abdoul 2017-06-21 18:56 GMT+02:00 Giovanni Maruzzelli <gmaruzz(a)gmail.com>om>:

...

Linphone client seems to not support PRACK method. Any other solution ? Regards Abdoul. 2017-06-21 18:47 GMT+02:00 Giovanni Maruzzelli <gmaruzz(a)gmail.com>om>:

On 21 June 2017 at 18:42, Abdoul Osséni <abdoul.osseni(a)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(a)gmail.com >: > Maybe PRACK, RFC 3262, is what you are looking for? > > --- > Stefan > > On Jun 21, 2017 2:46 PM, "Abdoul Osséni" <abdoul.osseni(a)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(a)lists.kamailio.org > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > > > _______________________________________________ > Kamailio (SER) - Users Mailing List > sr-users(a)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(a)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

-- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18

shubh diwase

21 Jun 21 Jun

9:57 p.m.

Linphone return call.state,which can be used by some nodejs wrappers to get the released connection,so u can catch the current status of linphone and release end. On 21-Jun-2017 10:24 PM, "Abdoul Osséni" <abdoul.osseni(a)gmail.com> wrote:

...

Linphone client seems to not support PRACK method. Any other solution ? Regards Abdoul. 2017-06-21 18:47 GMT+02:00 Giovanni Maruzzelli <gmaruzz(a)gmail.com>om>:

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

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Abdoul Osséni
Giovanni Maruzzelli
Mititelu Stefan
shubh diwase