Hi, When I try to change the port from 5060 to other value (e.g. 1234), after restarting SER, the gateway (sipura 2000) fails to register even I change the "SIP port" to 1234. I use serctl ps to view the server process, only port 80 is used for listening. I use ethereal to trace the packets, when the client sends the REQUEST, my SER server did not reply. Only 5060 works successfully. Do you have any ideas? Thomas On Fri, 2004-12-17 at 16:50, Atle Samuelsen wrote: just