HI Bogdan-Andrei, Thanks for your answer. However, in my configuration file, I set modparam("tm", "fr_timer", 10) modparam("tm", "fr_timer_avp", "$avp(timeout)")
route { $avp(timeout) = 32; !t_relay(); } A caller still receives 408 request timeout when the caller does not receive 200 OK in 10 seconds (after sending INVITE) rather than 32 seconds. What should I set to make the caller receive 408 request timeout after 32 seconds? Thanks for your help. Best regards, Chen-Che -- View this message in context: http://opensips-open-sip-server.1449251.n2.nabble.com/Detect-failed-SIP-server-tp7585427p7586240.html Sent from the OpenSIPS - Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users