Hi guys, I am trying to run freeswitch on Amazon AWS, but I am facing the following error: 2014-01-31 11:43:11.024549 [ERR] sofia.c:2500 Error Creating SIP UA for profile: internal (sip:mod_sofia@172.31.28.215:5060) The likely causes for this are: 1) Another application is already listening on the specified address. 2) The IP the profile is attempting to bind to is not local to this system. I am sure that the port 5060 is not used by any other application as well as 172.31.28.215 is an internal IP address of the instance. I have tried to configure mod_sofia as it described in this link: http://wiki.freeswitch.org/wiki/Amazon_EC2 Also I googled this error and tried to fix it with <X-PRE-PROCESS cmd="set" data="local_ip_v4=172.31.28.215"/> All required ports are opened. Freeswitch git installation v.1.2.18 Strange that I have never faced the same issue with my previous FS installations on EC2. Thanks for advice! Arsen.