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

[Mititelu Stefan]

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

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