I have set up a second FreeSWITCH box on the same LAN. I have v16018 installed on it and have changed nothing. I configured a Polycom phone to register one of its four lines to this second box, but it does not register. When looking at the console, there is no activity. However, there is SIP activity on the box which I have captured via ngrep. It looks like the phone is sending out REGISTER requests but there is no response. The request on the pastebin repeats forever, with only the timestamp varying. Is the problem that there are two FreeSWITCHes? Any suggestions on how I can make it work? On the original and the new box in vars.xml "external_sip_ip=stun:stun.freeswitch.org" On the original box in vars.xml "external_sip_port=5090" but in the new it is 5080. Do I need to hardcode the external_sip_ip addresses in both boxes? http://pastebin.freeswitch.org/11600 Thanks Lars