Standard way of putting call on hold is to mark media attributes as sendonly or inactive. C=0.0.0.0 should also work for implementations which are backward compatible with this way of putting call on hold. Setting port number in m line to 0 is not advisable since this is offer-answer model's way of rejecting a media stream.
Sanjay >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of >Darshan Bildikar >Sent: Tuesday, December 12, 2006 7:35 AM >To: [email protected] >Cc: Padma Priya R >Subject: [Sip-implementors] About hold criteria > >I need to send a hold SDP to a UA. > >Different UA's make different assumptions on what exactly >constitutes a hold SDP. Hence I set, > >1) c=0.0.0.0 >2) The port in the "m" line to 0 >3) All streams marked as "inactive" > >Is anyone aware of a restriction that does not allow me to >mark c="0.0.0.0" >and set the port in the media line to 0? Is there a problem >with what I'm doing? > > > >_______________________________________________ >Sip-implementors mailing list >[email protected] >https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
