Hi, Some SIP phones produce Contact like "user at domain@x.x.x.x". pjsip fails to parse such headers: 17:24:24.363 sip_transport. Error processing 800 bytes packet from UDP 10.0.0.1:5060 : PJSIP syntax error exception when parsing '' header on line 11 col 36: SIP/2.0 200 OK Via: SIP/2.0/UDP 10.0.0.24:55187;rport=55187;branch=111 From: "John Smith" <sip:john@xxxxxxxxxxx>;tag=222 To: "John Smith" <sip:john at example.com>;tag=333 Call-ID: 444 CSeq: 555 REGISTER Expires: 300 Contact: <sip:john at 10.0.0.24:55187>;expires=300 Contact: <sip:john at 10.0.0.24:55175>;expires=139 Contact: <sip:john at 10.0.0.24:55134>;expires=4 Contact: <sip:john at example.com@10.0.0.41:5070>;q=0.90;expires=31 pjproject-1.0.1, Mac OS X 10.5 Alexei
