Usage of Pres uri is recommended when the subscriber is aware of both pres uri and sip/sips uri . hence any proxy that does not support Pres uri can reject it. so it's not contradictory.
Rgds Meera -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jaya krishna Sent: Thursday, October 20, 2005 10:43 AM To: Sip-Implementors Subject: [Sip-implementors] query on Presence RFC 3856 hi all, The following lines from RFC 3856 seems contradictory. can you help me to understand this clearly statement 1 (Section 5 Usage of Presence URIs ) : "If the subscriber is aware of both the protocol-independent pres URI and the SIP or SIPS URI for the same presentity, and both are valid (as discussed above) it SHOULD use the pres URI format. " Statement 2 (Section 5 Usage of Presence URIs ) : " When the pres URI is used, any proxies along the path of the SUBSCRIBE request which do not understand the URI scheme will reject the request. As such, it is expected that many systems will be initially deployed that only provide users with a SIP URI." Here the statement 1 mandates us with using pres and next statement says it will be rejected. How to handle this situation. can a contact of SUBSCRIBE request be of PRES: scheme ? thanks in advance, Krishna --------------------------------- Yahoo! India Matrimony: Find your partner now. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or [EMAIL PROTECTED] immediately and destroy all copies of this message and any attachments. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
