Yes, I think PRACK method can help me.

Thanks.

Regards

Abdoul.

2017-06-21 14:20 GMT+02:00 Mititelu Stefan <stefan.mititelu92@gmail.com>:

Maybe PRACK, RFC 3262, is what you are looking for?

---
Stefan

On Jun 21, 2017 2:46 PM, "Abdoul Osséni" <abdoul.osseni@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 

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--

Abdoul OSSENI

Ingénieur Réseaux et systèmes chez THALES

Co-Fondateur de ON SERVICES

Tél : +33 601 135 167

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