Moving to sip-implementors: > -----Original Message----- > From: Deepak Mohan [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, January 16, 2001 11:20 PM > To: [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: RE: [SIP] OPTIONS method, bug in > draft-ietf-sip-rfc2543bis-02 > > > > In table 4 and 5 of draft-ietf-sip-rfc2543bis-02, the OPTIONS > > message cannot have the "Expires" or the "Priority" headers. > > > > Couldn't the "Expires" header be used to *check* if a call > > can be established using OPTIONS, within the specified time? > > THis is not the meaning of expires. As a general header, it > refers to the > amount of time for which the request is valid. That is not > the same thing as > the amount of time over which a call from the same party would be > acceptable. > > What I meant to ask was, can OPTIONS with an "Expires" of > say, "some_date", can be used to check if another request > (INVITE), will reach the target UAS with the "Expires" value > also set to "some_date". This might be useful if you want a > call to be setup within a certain duration of receiving a > command from a user to setup a call. No. As I said, that is NOT the meaning of Expires. -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.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000 http://www.dynamicsoft.com _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
