It is required if REFER is used for call transfer scenario and use of Event:Refer helps in receiving notifications for implicit subscriptins. The notification from transferor will contain this event header.
Regards Ranjit -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Pandurangan R S Sent: Tuesday, July 01, 2008 12:46 PM To: [email protected] Subject: [Sip-implementors] Event header in REFER request Hi, Is "Event: Refer" header mandatory in a REFER request? RFC 3515 says: A REFER request implicitly establishes a subscription to the refer event. Also there is no mention on Event header in Section "2.2 Header Field Support for the REFER Method" Hence I think Event header is NOT mandatory in REFER request. But I understand that it is mandatory in the SUBSCRIBE, NOTIFY that might be sent on the REFER dialog. Is this correct? Thanks Pandu _______________________________________________ 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
