Hi all, SER could not forward an INVITE message originating from a SIP UA to our PSTN gateway with URL: sip:12354@ourDomain.com, but does with the URL: sip:12345@GatewayIP. The following if statement has been added into the SER config file: if(uri=~"sip:[0-9]*@.*" &&(!(src_ip==130.149.159.196))){ rewritehostport("130.149.159.196:4000"); if (!t_relay()) { sl_reply_error(); }; break; }; In this case, SER sends the message "404 Not Found" to the SIP UA. What could the problem be? Does anyone know? Thanks, Adel Al-Hezmi _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers