Hi All There seems to be an ambiguity in the SIP ABNF grammer in case of "To" header.
According to the bis-09 It is Like this To = ( "To" / "t" ) HCOLON ( name-addr / addr-spec ) *( SEMI to-param ) name-addr = [ display-name ] LAQUOT addr-spec RAQUOT addr-spec = SIP-URI / SIPS-URI / absoluteURI Now since both the SIP URL Parameters and the TO Parameters are seperated by SEMICOLON so if the To Header contains Addr-spec field then on what basis parser will determine whether incoming parameter is SIP URL Parameter or a To Header parameter. For example see the line below To: sip:[EMAIL PROTECTED];user=phone;ttl=10;tag=1234 Is there something wrong in my interpretation of SIP Grammer. Regards Ashwani _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
