Re: how to response the offer

Hello SunYongGuang,

A should consider incoming SDP as new offer and answer appropriately, quite
likely as you mention the offer has not changed it would send a 180 or 200
OK response with same parameters as negotiated first time.

In any case A should not ignore  the incoming re-invite as that would cause
B to terminate the session, Section 14.1 UAC behaviour of RFC.

Hope it helps.

Regards,
-Tanu.

On Wed, Aug 19, 2009 at 12:58 PM, 孙永光 <[email protected]> wrote:

>
>  Dear All
>
>    I have a question about How to respond the offer , the scenario is as
> following
>
> A call B , and the offer and answer is ok , after a while , A receives a B
> 's REINVITE which includes the same SDP as it just answered before
>
> now, How does A respond it ?
>
> does A  must respond  the B's new offer  with   the same SDP as the offer
> it sent previously?
>
> could you give some advice ?
>
> Thanks
>
> SunYongGuang
>
>
>
>
>
> --
> msn:[email protected] <msn%[email protected]>
>
>
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