[SIPForum-discussion] specific case with a=inactive
badal naik
kunusan at yahoo.com
Tue Oct 2 08:40:57 UTC 2007
Well,
I think in your scenario U have to add the SDP
parameter of the previous success(2**) reponse.
Re-Invite should work as follows in ur case:
When a UAC sends a re-invite with no session
description, in which case the first reliable
non-failure response to the re-invite will contain the
offer.
That is my understanding..
Thanks
Badal Naik
--- Traussnig Robert <robert.traussnig at kapsch.net>
wrote:
> Hi!
>
> I'm not quite sure if this is correct but because of
> the fact that you
> didn't get a SDP in the Re-Invite you have to give
> an offer in your
> 200ok. So you have to decide if you send a=inactive
> again or a=sendrecv.
> Maybe someone have a better answer.
>
> Best Regards,
> Robert
>
>
> -----Ursprungliche Nachricht-----
> Von: discussion-bounces at sipforum.org
> [mailto:discussion-bounces at sipforum.org]Im Auftrag
> von Joerg Scholz
> Gesendet: Montag, 01. Oktober 2007 18:58
> An: discussion at sipforum.org
> Betreff: [SIPForum-discussion] specific case with
> a=inactive
>
>
>
> Hello everybody,
>
> I have a quick question related to the SDP signaling
> behavior in a
> specific hold case. My scenario is the following:
>
>
>
> Incoming Re-invite of an established voice call with
> the following
> content of SDP:
>
> c=IN IP4 0.0.0.0
>
> ...
>
> a=inactive
>
>
>
> In the 200ok I confirm the attribute line:
>
> a=inactive
>
>
>
> and the call is hold - everything ok.
>
> Later on comes another Re-invite without SDP for the
> same call. Now my
> question, if I answer in the 200ok for that
> Re-invite with SDP do I have
> to repeat also the:
>
> a=inactive
>
> attribute or do I send now my SDP again with
>
> a=sendrecv
>
>
>
> Thanks and Best regards
>
> Joerg
>
>
>
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