[SR-Users] Kamailio problem route

Hello! i am new in It, i speak spanish y very bad english, my problem is: i want route to announcement when is busy or request timeout(486|408): ... ... if(t_check_status("486|408")){ route(TEST); exit; } route[TEST] { setflag(1); append_hf("P-App-Name: announcement\r\n"); rewritehostport("sip.inf.uct.cl:5080"); route("RELAY"); exit; } route[RELAY] { if(is_method("ACK")) { exec_msg("/bin/echo \" $$SIP_HF_FROM $$SIP_HF_TO $$SIP_RURI \" >> /home/kaminfo/llamadas.log"); ... ... this just to prove that routing works. call with linphone and gives an error that says "I'm terribly sorry, server error occurred (6/SL). Are you missing something in code? Please help, is my final Thank you. -- Saludos ATTE: * * imagen mirje /*Camilo Bozo Mirje Soluciones informáticas Atención de Lunes a Viernes 9:30 a 18:30 hrs Fono: 81338638 Email: camilo.bozo(a)mirje.net */