[SIPForum-discussion] Help in PRACK

Retesh retesh.chadha at gmail.com
Sun Dec 5 10:31:39 UTC 2010


UAS will keep retransmitting 180 response until it receives PRACK, and
will eventually timeout if it never receives PRACK.
This behavior is similiar to 200 response retransmission until ACK
reception by UAS.

Hope this helps.

Regards
Retesh

On Sun, Dec 5, 2010 at 8:02 AM, Sankar Senthil <frenzpark at gmail.com> wrote:
> Dear Members,
>
> When UAC sends Supported:100rel in the initial INVITE and UAS responds
> 180RINGING with Required:100rel
>
> 1) What will happen if the UAC doesnt respond PRACK ??
>
> 2) What will be the UAS behaviour if it doesnt receive PRACK??
>
> Regards,
> Senthil
>
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-- 
With Regards
Retesh Chadha



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