Hi >From RFC 3261, Section 9.1 If no provisional response has been received, the CANCEL request MUST NOT be sent; rather, the client MUST wait for the arrival of a provisional response before sending the request.
So UAC Must not Send CANCEL request before 1xx response. regards Praveena Mascon Global Communication Tech., Bangalore -----Original Message----- > From: NC Reddy [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 18, 2006 10:46 AM > To: [email protected] > Subject: [Sip-implementors] CANCEL before 1XX response ? > Hi, >1. Can UAC send CANCEL request before 1xx response for INVITE msg?. >2. If UAC sent CANCEL before 1XX response, what's the behaviour of the UAS? >Thanks&Regards >Channa _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
