Looping usually means, that Kamailio fails to detect that the message is target to itself. This is often caused by if the SIP domain in the request URI is not know to Kamailio's aliases.
If you can not fix it, enable debug=3 and watch how the message is processed through the script to find out where the message is routed falsely.
regards Klaus
Am 29.07.2011 11:21, schrieb Coca:
Dear List,
I have Kamailio 3.1 installed in Amazon EC 2 server. Everything is working fine except that every REGISTER / MESSAGE was looped for twice or 3 times. And I am sure this is not caused by UA.
I have attached the ngrep log in this message. And also, my main modification to the kamailio.cfg is like below:
Your help will be great great appreciated.
Thank you!!
Coca
#!define WITH_MYSQL #!define WITH_NAT
alias="mydomain.org http://mydomain.org" alias="xx.xx.xx.xx"
advertised_address="xx.xx.xx.xx"
... ...
route {
# per request initial checks route(REQINIT);
# NAT detection route(NAT);
# handle requests within SIP dialogs route(WITHINDLG);
### only initial requests (no To tag)
# CANCEL processing if (is_method("CANCEL")) { if (t_check_trans()) t_relay(); exit; }
t_check_trans();
# authentication route(AUTH);
# record routing for dialog forming requests (in case they are routed) # - remove preloaded route headers remove_hf("Route"); if (is_method("INVITE|SUBSCRIBE")) { #record_route(); /* for NAT support */ record_route_preset("xx.xx.xx.xx"); }
# account only INVITEs if (is_method("INVITE")) { setflag(FLT_ACC); # do accounting }
# dispatch requests to foreign domains route(SIPOUT);
### requests for my local domains
# handle presence related requests route(PRESENCE);
# handle registrations route(REGISTRAR);
if ($rU==$null) { # request with no Username in RURI sl_send_reply("484","Address Incomplete"); exit; }
# dispatch destinations to PSTN route(PSTN);
# user location service route(LOCATION);
route(RELAY); }
# Handle SIP registrations route[REGISTRAR] { if (is_method("REGISTER")) { if(isflagset(FLT_NATS)) { setbflag(FLB_NATB); # uncomment next line to do SIP NAT pinging setbflag(FLB_NATSIPPING); } if (!save("location")) sl_reply_error();
exit; } }
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