Hi, After changing log level from INFO to DEBUG level, I am seeing bunch of ERROR messages which are unknown to me: May 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=505 a=17 n=ifMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=498 a=26 n=is_methodMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=505 a=6 n=routeMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=770 a=17 n=ifMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=765 a=26 n=mf_process_maxfwd_headerMay 15 10:26:44 DEBUG: maxfwd [mf_funcs.c:85]: value = 68May 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=775 a=17 n=ifMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=770 a=27 n=sanity_checkMay 15 10:26:44 DEBUG: <core> [parser/msg_parser.c:202]: DEBUG: get_hdr_body : content_length=0May 15 10:26:44 DEBUG: <core> [parser/msg_parser.c:104]: found end of headerMay 15 10:26:44 DEBUG: <core> [parser/parse_to.c:178]: DEBUG: add_param: tag=snl_0156137698_NSN_CLIENTMay 15 10:26:44 DEBUG: <core> [parser/parse_to.c:802]: end of header reached, state=29May 15 10:26:44 DEBUG: sanity [mod_sanity.c:255]: sanity checks result: 1May 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=508 a=6 n=routeMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=976 a=3 n=returnMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=511 a=6 n=routeMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=833 a=17 n=ifMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=780 a=25 n=has_totagMay 15 10:26:44 DEBUG: siputils [checks.c:106]: totag foundMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=786 a=17 n=ifMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=830 a=17 n=ifMay 15 10:26:44 ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=786 a=25 n=loose_route The error message are complaining about simple statements in the config file: if (is_method("OPTIONS")) { sl_send_reply("200", "Ok"); exit; } if (!mf_process_maxfwd_header("10")) { sl_send_reply("483","Too Many Hops"); exit; } if(!sanity_check("1511", "7")) { xlog("Malformed SIP message from $si:$sp\n"); exit; } I appreciate your help. Thanks,AS