I think the key word here is "provisional", which makes the difference. Agree?
Chris
Takumi Ohba wrote:
> Dear all,
>
> May 1xx response include a session description when a corresponding INVITE
> did not contain a session description?
>
> According to 2543bis02;
> - In the second paragraph of 4.2.1
> "In this case, the UAS SHOULD still return a session description in its
> informational (1xx) or success (2xx) response, containing those media
> streams and codecs it supports."
>
> - In the second paragraph of 7.1
> "Thus, the UAS can only include a session description in its provisional
> response if the UAC has included one in an earlier INVITE."
>
> These two sentences seem contradictory for me, because the former allows the
> inclusion of SDP in 1xx but the latter does not.
> I believe the former is correct.
>
> Regards,
> Takumi Ohba
>
> ***************************************************
> Takumi OHBA
> NTT Network Service Systems Laboratories
> tel +81 422 59 4405 fax +81 422 59 3494
> e-mail [EMAIL PROTECTED]
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>
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