I believe this is valid.
If accepted, you will have a signaling session, but no media.
That isn't terribly useful if it stays that way. But it might just be
transitional, with an intent to send an updated offer later.
But the caller is risking that the callee will simply refuse the call.
If there is a real user at the other end, he will get silence. At best
he will wait awhile, and then hang up if things don't get better.
The caller here had better have some plans for what to do next. The
callee certainly can't be expected to make a counter offer.
Thanks,
Paul
On 10/22/13 12:58 PM, isshed wrote:
> Hi all,
>
> Can there be an offer with as follows.
>
> v=0
> o=abc 940493389 1 IN IP4 10.10.10.10
> s=-
> c=IN IP4 10.10.10.10
> t=0 0
> m=audio 0 RTP/AVP
>
> Here m line does not have any payload format <fmt>. Is this a valid offer?
> what is the use case of this offer?
>
> Thanks,
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