Hi, i'm newbie in kamailio, I tried installed ims kamailio from ng-repository packages, Then when I tried to send register to SIP server using SIPp, I received this log [Proxy-CSCF][28505]: ERROR: <core> [core/parser/msg_parser.c:331]: parse_headers(): bad header field [(null)] [Proxy-CSCF][28500]: ERROR: <core> [core/parser/msg_parser.c:331]: parse_headers(): bad header field [(null)] [Proxy-CSCF][28496]: WARNING: <core> [core/receive.c:192]: receive_msg(): parsing relevant headers failed [Proxy-CSCF][28505]: message repeated 2 times: [ WARNING: <core> [core/receive.c:192]: receive_msg(): parsing relevant headers failed] [Proxy-CSCF][28492]: ERROR: <core> [core/parser/msg_parser.c:675]: parse_msg(): ERROR: parse_msg: message=<#002#020#002#021#023�#023���z'��z'#006��[%�#007> Thank you -- Nguyễn Tiến Hưng _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users