Hi,
check via network traces that the replies really have a proper SDP body. Note that 180 does not has one.
regards, bogdan
Jayesh Nambiar wrote:
Hi all, I am jus trying to experiment strange things. please tell me if this is possible. I have an user behind NAT calling a user on pstn side. Since the pstn gateway is on a public IP, I dont use mediaproxy, what i do before an invite is: fix_nated_contact(); fix_nated_sdp("15"); This call is successful and both the parties can hear. But again when a user at public IP trues to contact the user behind NAT, there is only "one way audio". Here also I do a fix_nated_contact() and fix_nated_sdp("15") in the onreply_route[], but I get the foll error in my syslog. Mar 23 14:36:19 switch2 /usr/local/sbin/openser[29070]: ERROR: extract_mediaip: no `c=' in SDP Mar 23 14:36:19 switch2 /usr/local/sbin/openser[29070]: ERROR: extract_mediaip: no `o=' in SDP Can someone pls explain what these errors are and why do they occur. My cfg file is below: debug=9 # debug level (cmd line: -dddddddddd) fork=yes log_stderror=no check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) listen=202.XX.XX.XX port=5060 children=4 fifo="/tmp/openser_fifo" loadmodule "/usr/local/lib/openser/modules/mysql.so" loadmodule "/usr/local/lib/openser/modules/sl.so" loadmodule "/usr/local/lib/openser/modules/tm.so" loadmodule "/usr/local/lib/openser/modules/rr.so" loadmodule "/usr/local/lib/openser/modules/maxfwd.so" loadmodule "/usr/local/lib/openser/modules/usrloc.so" loadmodule "/usr/local/lib/openser/modules/registrar.so" loadmodule "/usr/local/lib/openser/modules/textops.so" loadmodule "/usr/local/lib/openser/modules/auth.so" loadmodule "/usr/local/lib/openser/modules/auth_db.so" loadmodule "/usr/local/lib/openser/modules/mediaproxy.so" loadmodule "/usr/local/lib/openser/modules/nathelper.so" loadmodule "/usr/local/lib/openser/modules/domain.so" modparam("auth_db|usrloc", "db_url", "mysql://openser:openserrw@localhost/openser") modparam("usrloc", "db_mode", 2) modparam("auth_db", "calculate_ha1", 1) modparam("auth_db", "password_column", "password") modparam("registrar", "nat_flag", 6) modparam("rr", "enable_full_lr", 1) modparam("mediaproxy", "natping_interval", 30) modparam("nathelper", "rtpproxy_disable", 1) modparam("nathelper", "natping_interval", 0)
route{ if (!mf_process_maxfwd_header("10")) { sl_send_reply("483","Too Many Hops"); exit; }; if (msg:len >= 2048 ) { sl_send_reply("513", "Message too big"); exit; }; if(!method=="REGISTER") { record_route(); }; if (loose_route()) { append_hf("P-hint: rr-enforced\r\n"); route(1); return; }; if (uri!=myself) { route(1); return; }; if(uri==myself) { if(method=="REGISTER") { sl_send_reply("100", "Trying"); if (!search("^Contact:\ +*") && client_nat_test("7")) { setflag(6); force_rport(); fix_nated_contact(); }; if (!www_authorize("","subscriber")) { www_challenge("", "0"); exit; }; save("location"); exit; }; if(method=="INVITE") { if (client_nat_test("3")) { force_rport(); fix_nated_sdp("15"); fix_nated_contact(); setflag(7); }; if(src_ip==202.XX.XX.44) { #my pstn gateway. calls are only for registered users if(!lookup("location")) { sl_send_reply("404", "User not found"); exit; }; route(1); }; if (!proxy_authorize("","subscriber")) { proxy_challenge("", "0"); exit; }; route(2); return; }; }; } route[1] { t_on_reply("1"); if(!t_relay()) { sl_reply_error(); exit; }; } route[2] { if(uri=~"^sip:0[0-9]*@") { strip(1); rewritehost("202.80.61.1"); route(1); exit; }; if(!lookup("location")) { sl_send_reply("404", "User not found"); exit; }; route(1); exit; } onreply_route[1] { if ((isflagset(6) || isflagset(7)) && (status=~"(180)|(183)|2[0-9][0-9]")) { if (!search("^Content-Length:\ +0")) { force_rport(); fix_nated_sdp("15"); fix_nated_contact(); }; }; }
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