> -----Original Message-----
> From: Baniel Uri-CUB001 [mailto:[EMAIL PROTECTED]]
> Sent: Monday, April 23, 2001 4:57 PM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] Usage of the the 't=' SDP field in unicast
> sessions
>
>
> Say it is now 9:00 AM and a UAC invites a UAS to 10:00 AM session (by
> setting the t= SDP field to 10:00 AM).
>
> 1.Would the UAS device ring?
Thats a matter of local implementation. If you want the user to accept or
reject this invitation, you should alert them somehow.
> 2.Would the UAS device respond with a 200 OK only if the user
> picks up the
> phone?
If the called user accepts the invitation, yes.
> 3.Will the UAC and UAS open up the RTP ports only at 10:00
> AM?
That is probably the correct behavior.
If yes, how
> will they indicate it to the user?
Establishing time bound sessions this way is really only useful for loosely
coupled multicast sessions, I would suspect. For these loosely coupled
conferences, there is not a need to explicitly indicate to the caller that
the callee has joined the session. They simply join the group. No need to
send a BYE, either, in fact.
This is the original application for SIP.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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