Hello , I have installed the SER-0.9.0 +nathelper+rtpproxy,it can let the the SER through the nat by the rtpproxy. But there are a problem . The endpoint would sent Bye message to SER when it connect the SER about 32 sec. I have tested some endpoints but it is the same (only can maintain 32 sec connecting). Why? I don't know how to solve the problem. My config file following:

dns=no rev_dns=no fifo="/tmp/ser_fifo" fifo_db_url="mysql://ser:heslo@localhost/ser"

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/nathelper.so" loadmodule "/usr/local/lib/ser/modules/textops.so" loadmodule "/usr/local/lib/ser/modules/uri_db.so" loadmodule "/usr/local/lib/ser/modules/uri.so" loadmodule "/usr/local/lib/ser/modules/domain.so"

modparam("auth_db|usrloc|uri_db", "db_url", "mysql://ser:heslo@localhost/ser")

modparam("auth_db", "calculate_ha1", 1) modparam("auth_db", "password_column", "password")

modparam("nathelper", "natping_interval", 30) modparam("nathelper", "ping_nated_only", 1) modparam("nathelper", "rtpproxy_sock", "unix:/var/run/rtpproxy.sock")

modparam("usrloc", "db_mode", 2)

modparam("registrar", "nat_flag", 6)

modparam("rr", "enable_full_lr", 1)

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!="REGISTER") { record_route(); };

if (method=="BYE" || method=="CANCEL") { unforce_rtp_proxy(); }

# ----------------------------------------------------------------- # Loose Route Section # ----------------------------------------------------------------- if (loose_route()) {

if (has_totag() && method=="INVITE") { if (nat_uac_test("19")) { setflag(6); force_rport(); fix_nated_contact(); }; force_rtp_proxy("l"); }; route(1); break; };

# ----------------------------------------------------------------- # Call Type Processing Section # ----------------------------------------------------------------- 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] {

# ----------------------------------------------------------------- # Default Message Handler # -----------------------------------------------------------------

t_on_reply("1");

if (!t_relay()) { if (method=="INVITE" && isflagset(6)) { unforce_rtp_proxy(); }; sl_reply_error(); }; }

route[2] {

# ----------------------------------------------------------------- # REGISTER Message Handler # ----------------------------------------------------------------

if (!search("^Contact: *") && nat_uac_test("19")) { setflag(6); fix_nated_register(); force_rport(); };

sl_send_reply("100", "Trying");

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] {

# ----------------------------------------------------------------- # INVITE Message Handler # -----------------------------------------------------------------

if (nat_uac_test("19")) { setflag(6); }

if (!lookup("location")) { sl_send_reply("404", "User Not Found"); break; };

if (!proxy_authorize("","subscriber")) { proxy_challenge("","0"); break; } else if (!check_from()) { sl_send_reply("403", "Use From=ID"); break; };

consume_credentials();

if (isflagset(6)) { force_rport(); fix_nated_contact(); force_rtp_proxy(); };

t_on_reply("1");

if (!t_relay()) { if(isflagset(6)) { unforce_rtp_proxy(); } sl_reply_error(); }; }

onreply_route[1] {

if (isflagset(6) && status=~"(180)|(183)|2[0-9][0-9]") { if (!search("^Content-Length:\ 0")) { force_rtp_proxy(); }; } else if (nat_uac_test("1")) { fix_nated_contact(); }; }

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