No, there is only traffic in the direction SIP->PSTN. I'm not using the web interface, but instead the shell command session.py
This is what it shows ... ( for the case when I call from PSTN-to-SIP )
Total traffic: 20.48kbps/0bps/0bps (in1/in2/out) Session count: 1
I think you need to look into your ser.cfg; it looks to me like you are proxying calls only when they originate from NAT -> non-nat and not from non-natted endpoints -> NAT.
I know that, I could tell from when UA sends rtp traffic directly to the Gateway instead of sending it to the proxy. Is there something in the sip/sdp headers that tells the proxy from where to get the IP of my UA, so to be able to proxy the call ? Or, in other words, Why should calls coming in from the pstn not be proxied ?
Here goes my ser, may be you can see something I'm not seeing ...
debug=3 # debug level (cmd line: -dddddddddd) fork=no log_stderror=yes # (cmd line: -E)
check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R)
fifo="/tmp/ser_fifo"
server_signature=no
# ------------------ module loading ----------------------------------
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/textops.so" loadmodule "/usr/local/lib/ser/modules/auth.so" loadmodule "/usr/local/lib/ser/modules/uri.so"
# NAT STUFF loadmodule "/usr/local/lib/ser/modules/domain.so" loadmodule "/usr/local/lib/ser/modules/mediaproxy.so" loadmodule "/usr/local/lib/ser/modules/nathelper.so"
# ----------------- setting module-specific parameters ---------------
modparam("usrloc", "db_mode", 0) modparam("registrar", "use_domain", 0) modparam("rr", "enable_full_lr", 1)
# -- NAT STUFF PARAMS -- modparam("nathelper", "rtpproxy_disable", 1) modparam("nathelper", "natping_interval", 0)
modparam("mediaproxy", "natping_interval", 30) modparam("mediaproxy", "sip_asymmetrics", "/usr/local/etc/ser/sip-asymmetric-clients") modparam("mediaproxy", "rtp_asymmetrics", "/usr/local/etc/ser/rtp-asymmetric-clients")
modparam("registrar", "nat_flag", 6)
# main routing logic
route{ if (!mf_process_maxfwd_header("10")) { sl_send_reply("483","Too Many Hops"); break; }; if (msg:len >= max_len ) { sl_send_reply("513", "Message too big"); break; }; if (method=="INVITE" && client_nat_test("3")) { log(1, " -- INVITE and client_nat_test(3) --\n"); record_route_preset("208.221.169.88:5060;nat=yes"); # insert IP address } else if (!method=="REGISTER") { record_route(); };
if (method=="BYE" || method=="CANCEL") { log(1, " -- BYE or CANCEL: Media Proxy -- \n"); end_media_session(); };
if (loose_route()) { if (has_totag() && method=="INVITE") { if (client_nat_test("3") || search("^Route:.*;nat=yes")) { setflag(6); use_media_proxy(); }; }; # mark routing logic in request route(1); break; };
if (!uri==myself) { route(1); break; };
if (uri==myself) { if (method=="INVITE") { route(3); break; } else if (method=="REGISTER") { route(2); break; }; if (!lookup("location")) { sl_send_reply("404", "User Not Found"); break; }; route(1); }; }
route[1] { log(1, " | route[1] entered |\n");
t_on_reply("1");
if (!t_relay()) { if (method=="INVITE" || method=="ACK") { end_media_session(); }; sl_reply_error(); }; }
route[2] { log(1, " | route[2] entered |\n");
if (!search("^Contact: *") && client_nat_test("7")) { setflag(6); fix_nated_register(); force_rport(); };
if (!save("location")) { sl_reply_error(); };
}
route[3] { log(1, " | route[3] entered |\n");
if (client_nat_test("3")) { setflag(7); force_rport(); fix_nated_contact(); };
if (!lookup("location")) { if (src_ip==IP_SNOM_PROXY) { sl_send_reply("404", "User Not Found"); break; };
log(1, " -- Reenviando a SIP Proxy SNOM -- \n"); rewritehostport("GATEWAY:5060");
};
if (isflagset(6) || isflagset(7)) { use_media_proxy(); };
route(1);
}
onreply_route[1] { log(1, " +--------------------------+\n"); log(1, " | onreply_route[1] entered |\n"); log(1, " +--------------------------+\n");
if(status=~"486") { log(1, " -- 486 -> BUSY --\n"); };
if(status=~"404") { log(1, " -- 404 -> NOT REGISTERED --\n"); };
if(status=~"180") { log(1, " -- 180 -> RINGING --\n"); };
if(status=~"183") { log(1, " -- 183 -> SESSION --\n"); };
if(status=~"2[0-9][0-9]") { log(1, " -- 2xx -> OK --\n"); };
if ((isflagset(6) || isflagset(7)) && (status=~"(180)|(183)|2[0-9][0-9]")) { if (!search("^Content-Length:\ 0")) { #fix_nated_contact(); use_media_proxy(); }; };
if (client_nat_test("1")) { fix_nated_contact(); };
}
Thank you very much
Regards,
Lucas