I am trying the get the uac module working with the onsip.org ser.cfg (the pstn + mediaproxy version). I think the problem is related to the authentication on the gateway device. It doesn't seem to be challenging SER. Below is the SIP traffic and then the ser.cfg file. Any suggestions would be appreciated. For information, the gateway (198.22.67.70) is provided by Nufone.net and is an Asterisk server, I believe. Thanks in advance for any advice. Regards Cameron U 147.202.xx.xxx:5060 -> 60.234.xxx.xxx:5060 SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP 192.168.0.11:5060;branch=z9hG4bK-fff17e3f;rport=5060;received=60.234 .xxx.xxx..From: <sip:user1@mydomain.com>;tag=f9493da2f8a6d10ao0..To: <sip:00442070800000@mydomain.com>..Call-ID: ce674b 82-e2fd1caa@192.168.0.11..CSeq: 102 INVITE..Server: Sip EXpress router (0.9.2 (i386/linux))..Content-Length: 0..Warning: 392 147.202.xx.xxx:5060 "Noisy feedback tells: pid=6752 req_src_ip=60.234.xxx.xxx req_src_port=5060 in_uri=sip:00442070800000@mydomain.com out_uri =sip:00442070800000@198.22.67.70 via_cnt==1".... ## U 147.202.xx.xxx:5060 -> 198.22.67.70:5060 INVITE sip:00442070800000@198.22.67.70 SIP/2.0..Record-Route: <sip:00442070800000@147.202.xx.xxx:5060;nat=yes;ftag=f9493da2f8a6d10ao0;lr=on>. .Via: SIP/2.0/UDP 147.202.xx.xxx;branch=z9hG4bK8b0a.2871d5c2.0..Via: SIP/2.0/UDP 192.168.0.11:5060;rport=5060;received=60.234.xxx.xxx;bran ch=z9hG4bK-fff17e3f..From: <sip:user1@mydomain.com>;tag=f9493da2f8a6d10ao0..To: <sip:00442070800000@mydomain.com>..Cal l-ID: ce674b82-e2fd1caa@192.168.0.11..CSeq: 102 INVITE..Max-Forwards: 16..Contact: <sip:user1@60.234.xxx.xxx:5060>..Expires: 240..User- Agent: Sipura/SPA3000-3.1.3(GWa)..Content-Length: 424..Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported: x-sipura ..Content-Type: application/sdp....v=0..o=- 757701 757701 IN IP4 192.168.0.11..s=-..c=IN IP4 147.202.xx.xxx..t=0 0..m=audio 35026 RTP/AVP 0 2 4 8 18 96 97 98 100 101..a=rtpmap:0 PCMU/8000..a=rtpmap:2 G726-32/8000..a=rtpmap:4 G723/8000..a=rtpmap:8 PCMA/8000..a=rtpmap:18 G729 a/8000..a=rtpmap:96 G726-40/8000..a=rtpmap:97 G726-24/8000..a=rtpmap:98 G726-16/8000..a=rtpmap:100 NSE/8000..a=rtpmap:101 telephone-event /8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv.. # U 147.202.xx.xxx:5060 -> 60.234.xxx.xxx:5060 SIP/2.0 500 I'm terribly sorry, server error occurred (1/SL)..Via: SIP/2.0/UDP 192.168.0.11:5060;branch=z9hG4bK-fff17e3f;rport=5060;recei ved=60.234.xxx.xxx..From: <sip:user1@mydomain.com>;tag=f9493da2f8a6d10ao0..To: <sip:00442070800000@mydomain.com>;tag=66 9cac32ae43cfbf664b867e0fb4dd5a.572f..Call-ID: ce674b82-e2fd1caa@192.168.0.11..CSeq: 102 INVITE..Server: Sip EXpress router (0.9.2 (i386/l inux))..Content-Length: 0..Warning: 392 147.202.xx.xxx:5060 "Noisy feedback tells: pid=6752 req_src_ip=60.234.xxx.xxx req_src_port=5060 i n_uri=sip:00442070800000@mydomain.com out_uri=sip:00442070800000@198.22.67.70 via_cnt==1".... ## U 198.22.67.70:5060 -> 147.202.xx.xxx:5060 SIP/2.0 404 Not Found..Via: SIP/2.0/UDP 147.202.xx.xxx;branch=z9hG4bK8b0a.2871d5c2.0..Via: SIP/2.0/UDP 192.168.0.11:5060;received=60.234. xxx.xxx;branch=z9hG4bK-fff17e3f..From: <sip:user1@mydomain.com>;tag=f9493da2f8a6d10ao0..To: <sip:00442070800000@mydomain.com>;tag=as40c6caec..Call-ID: ce674b82-e2fd1caa@192.168.0.11..CSeq: 102 INVITE..User-Agent: Asterisk PBX..Allow: INVITE, ACK, CANCEL, O PTIONS, BYE, REFER, NOTIFY..Contact: <sip:00442070800000@198.22.67.70>..Content-Length: 0.... # U 147.202.xx.xxx:5060 -> 198.22.67.70:5060 ACK sip:00442070800000@198.22.67.70 SIP/2.0..Via: SIP/2.0/UDP 147.202.xx.xxx;branch=z9hG4bK8b0a.2871d5c2.0..From: <sip:user1@mydomain.com>;tag=f9493da2f8a6d10ao0..Call-ID: ce674b82-e2fd1caa@192.168.0.11..To: <sip:00442070800000@mydomain.com>;tag=as40c6caec. .CSeq: 102 ACK..User-Agent: Sip EXpress router(0.9.2 (i386/linux))..Content-Length: 0.... My ser.cfg is below: debug=3 fork=yes #fork=no log_stderror=yes check_via=no dns=no rev_dns=no fifo="/tmp/ser_fifo" fifo_db_url="mysql://user:password@localhost/ser" sock_mode=0666 #fifo_mode=0666 #fifo_user=root listen=147.202.xx.xxx port=5060 children=4 loadmodule "/usr/local/lib/ser/modules/mysql.so" loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/rr.so" loadmodule "/usr/local/lib/ser/modules/maxfwd.so" loadmodule "/usr/local/lib/ser/modules/usrloc.so" loadmodule "/usr/local/lib/ser/modules/registrar.so" loadmodule "/usr/local/lib/ser/modules/auth.so" loadmodule "/usr/local/lib/ser/modules/auth_db.so" loadmodule "/usr/local/lib/ser/modules/uri.so" loadmodule "/usr/local/lib/ser/modules/uri_db.so" loadmodule "/usr/local/lib/ser/modules/avpops.so" loadmodule "/usr/local/lib/ser/modules/mediaproxy.so" loadmodule "/usr/local/lib/ser/modules/nathelper.so" loadmodule "/usr/local/lib/ser/modules/textops.so" loadmodule "/usr/local/lib/ser/modules/domain.so" loadmodule "/usr/local/lib/ser/modules/permissions.so" loadmodule "/usr/local/lib/ser/modules/acc.so" loadmodule "/usr/local/lib/ser/modules/uac.so" modparam("auth_db|permissions|uri_db|usrloc|acc", "db_url", "mysql:// user:password @localhost/ser") modparam("auth_db", "calculate_ha1", 1) modparam("auth_db", "password_column", "password") modparam("nathelper", "rtpproxy_disable", 1) modparam("nathelper", "natping_interval", 0) modparam("mediaproxy","natping_interval", 30) modparam("mediaproxy","mediaproxy_socket", "/var/run/mediaproxy.sock") modparam("mediaproxy","sip_asymmetrics","/usr/local/etc/ser/sip-clients") modparam("mediaproxy","rtp_asymmetrics","/usr/local/etc/ser/rtp-clients") modparam("usrloc", "db_mode", 2) modparam("registrar", "nat_flag", 6) modparam("rr", "enable_full_lr", 1) modparam("tm", "fr_inv_timer", 27) modparam("tm", "fr_inv_timer_avp", "inv_timeout") modparam("permissions", "db_mode", 1) modparam("permissions", "trusted_table", "trusted") modparam("acc", "db_flag", 1) modparam("acc", "db_missed_flag", 3) modparam("uac","credential","user:asterisk:password") route { # ----------------------------------------------------------------- # Sanity Check Section # ----------------------------------------------------------------- if (!mf_process_maxfwd_header("10")) { sl_send_reply("483", "Too Many Hops"); break; }; if (msg:len > max_len) { sl_send_reply("513", "Message Overflow"); break; }; # ----------------------------------------------------------------- # Record Route Section # ----------------------------------------------------------------- if (method=="INVITE" && client_nat_test("3")) { record_route_preset("147.202.xx.xxx:5060;nat=yes"); # insert IP address } else if (method!="REGISTER") { record_route(); }; # ----------------------------------------------------------------- # Call Tear Down Section # ----------------------------------------------------------------- if (method=="BYE" || method=="CANCEL") { setflag(1); end_media_session(); }; # ----------------------------------------------------------------- # Loose Route Section # ----------------------------------------------------------------- if (loose_route()) { if (has_totag() && (method=="INVITE" || method=="ACK")) { if (client_nat_test("3") || search("^Route:.*;nat=yes")) { setflag(6); use_media_proxy(); }; }; route(1); break; }; # ----------------------------------------------------------------- # Call Type Processing Section # ----------------------------------------------------------------- if (uri!=myself) { route(5); route(1); break; }; if (uri==myself) { if (method=="ACK") { route(6); break; } else if (method=="CANCEL") { route(3); break; } else if (method=="INVITE") { route(3); break; } else if (method=="REGISTER") { route(2); break; }; lookup("aliases"); if (uri!=myself) { route(5); route(1); break; }; if (!lookup("location")) { sl_send_reply("404", "User Not Found"); break; }; }; route(1); } route[1] { # ----------------------------------------------------------------- # Default Message Handler # ----------------------------------------------------------------- if (!t_relay()) { if (method=="INVITE" || method=="ACK") { end_media_session(); }; sl_reply_error(); }; } route[2] { # ----------------------------------------------------------------- # REGISTER Message Handler # ---------------------------------------------------------------- sl_send_reply("100", "Trying"); if (!search("^Contact: \*") && client_nat_test("7")) { setflag(6); fix_nated_register(); force_rport(); }; if (!www_authorize("","subscriber")) { www_challenge("","0"); break; }; if (!check_to()) { sl_send_reply("401", "Unauthorized"); break; }; consume_credentials(); if (!save("location")) { sl_reply_error(); }; } route[3] { # ----------------------------------------------------------------- # CANCEL and INVITE Message Handler # ----------------------------------------------------------------- if (client_nat_test("3")) { setflag(7); force_rport(); fix_nated_contact(); }; if (method=="INVITE" && !allow_trusted()) { if (!proxy_authorize("","subscriber")) { proxy_challenge("","0"); break; } else if (!check_from()) { sl_send_reply("403", "Use From=ID"); break; }; consume_credentials(); }; lookup("aliases"); if (uri!=myself) { route(5); route(1); break; }; if (uri=~"^sip:[+|00][0-9]*@") { # International PSTN route(4); break; }; if (!lookup("location")) { if (uri=~"^sip:[0-9]{8}@") { # Domestic PSTN route(4); break; }; sl_send_reply("404", "User Not Found"); break; }; if (method=="CANCEL") { route(1); break; }; setflag(1); setflag(3); route(5); route(1); } route[4] { # ----------------------------------------------------------------- # PSTN Handler # ----------------------------------------------------------------- avp_write("i:45", "inv_timeout"); route(5); t_on_failure("4"); resetflag(8); t_relay_to_udp("198.22.67.70","5060"); route(1); } route[5] { # ----------------------------------------------------------------- # RTP Proxy Enabler # ----------------------------------------------------------------- if (isflagset(6) || isflagset(7)) { use_media_proxy(); }; } route[6] { # ------------------------------------------------------------------------ # ACK Handler # ------------------------------------------------------------------------ # ------------------------------------------------------------------------ # Aliases Section # ------------------------------------------------------------------------ lookup("aliases"); if (uri!=myself) { route(1); break; }; lookup("location"); route(1); } onreply_route[1] { if ((isflagset(6) || isflagset(7)) && (status=~"(180)|(183)|2[0-9][0-9]")) { if (!search("^Content-Length:\ 0")) { use_media_proxy(); }; }; if (client_nat_test("1")) { fix_nated_contact(); }; } failure_route[5] { if (t_check_status("401|407")) { if (isflagset(8)) { t_reply("503","Auth failed"); break; } if (uac_auth()) { setflag(8); t_on_failure("5"); append_branch(); t_relay(); } } }