Maxim Sobolev wrote:
> Paul Kyzivat wrote:
>>
>> Dale Worley wrote:
>>> On Wed, 2008-12-10 at 13:32 +0530, Nabam Serbang wrote:
>>>> 1) If the offer being presented in 2xx (200 OK) for INVITE is not
>>>> acceptable
>>>> by UAC, what would be the valid answer in that ACK? Remember this not
>>>> re-INVITE which will have prior SDP.
>>> No doubt you can take the SDP in the 200, modify in slightly in a few
>>> places, and convert it into an SDP answer that is value *with respect to
>>> the SDP offer*. Of course, since you are going to terminate the dialog
>>> immediately, it does not matter if the SDP answer has any relationship
>>> to the capabilities of the UA itself.
>>
>> For instance, put 0.0.0.0 in a c= line. Then copy all the m-lines but
>> set all the port numbers to zero. Put in valid value for o-line and
>> any others that just must be there, and nothing else.
>
> Putting port number 0 into m-line should be just enough. Port number of
> 0 means that the stream has been rejected. Any sensible UAC should send
> a BYE upon receipt of such SDP answer immediately.
You need to have all the required lines, which includes c=, o=, and some
others I forget.
Paul
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