Hi, I am trying to use my FS behind a NAT with SIP soft from Internet. So I have this setup: FS:192.168.2.110 ------ ROUTER (IP=70.70.70.70=myhost.no-ip.info) ----- SIP phone (SIP:/24.114.103.245/) I followed the wiki (http://wiki.freeswitch.org/wiki/NAT_Traversal) and updated these files: external.xml: <param name="ext-sip-ip" value="70.70.70.70"/> <param name="ext-rtp-ip" value="70.70.70.70"/> vars.xml: <X-PRE-PROCESS cmd="set" data="bind_server_ip=/myhost.no-ip.info/"/> When I try to register with the external SIP phone I get this error: /2014-05-21 12:47:54.843521 [WARNING] sofia_reg.c:2566 Can't find user [1001@myhost.no-ip.info] from 24.114.103.245/ /You must define a domain called 'myhost.no-ip.info' in your directory and add a user with the id="1001" attribute/ /and you must configure your device to use the proper domain in it's authentication credentials./ I don't have a multi-tennant setup, only one domain. I use this FS also for SIP device in the same LAN *freeswitch@internal> eval ${domain}** **192.168.2.110* I am missing something ? Any suggestion is welcome! Thank you in advance.