I *think* you have gotten a valid response from other respondents, but
I'm not certain about the question. You say the terminating party
supports 100rel, but does the originating party indicate support for
100rel? That is a necessity to use reliable provisionals.
The thing you want to read is draft-ietf-sipping-sip-offeranswer-13 (not
-10).
Read that, apply it to your case and come back if you still aren't sure.
Good luck,
Paul
On 11/3/2010 1:48 AM, AGRAWAL, VINEET (VINEET) wrote:
> Hi,
>
> Can any one please clarify, if 100 rel support on the terminating SIP party
> then the SDP answer of SDP offer received in INVITE must be in 183 Session
> progress .
> If I send SDP answer in 180 Ringing in spite of 183. is it ok according to
> rfc 3264.
> Please clarify the doubts.
>
>
> Regards,
> Vineet
>
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