Hello, I'm new in Openser and now I'm trying to use a failure_route but it doesn't work and I don't know why. The version that I'm using is Openser 1.2. What I'm trying is to forward a call after fr_inv_timer to Asterisk but it doesn't work. This is my openser.cfg : (...) modparam("tm", "fr_inv_timer" , 8) # ------------------------- request routing logic ------------------- # main routing logic route{ (...) if (uri==myself) { if (method=="REGISTER") { if (!www_authorize("172.16.51.150", "subscriber")) { www_challenge("172.16.51.150", "0"); exit; }; save("location"); exit; }; lookup("aliases"); if (!uri==myself) { append_hf("P-hint: outbound alias\r\n"); route(1); }; if(is_method("INVITE") && (uri=~"sip:2[0-9]+@")) { t_on_failure("1"); } # native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { sl_send_reply("404", "Not Found"); exit; }; append_hf("P-hint: usrloc applied\r\n"); }; route(1); } route[1] { # send it out now; use stateful forwarding as it works reliably # even for UDP2TCP if (!t_relay()) { sl_reply_error(); }; exit; } failure_route[1] { #redirect to Asterisk rewritehostport("172.16.51.160:5060"); rewriteuser("2002"); }