Hi This is my setup: 3CX Phone System Rel. 11, Service pack 4. the 3CX softphone. Voice operator Panel. So far everithing works great, but I'm trying a test wich does not work: I have Dynamic DNS running from No-IP so I can access the computer using the external Ip my ISP assigned to me I'm trying to connect the 3CX softphone to the phone system using the external IP, but all I get is a no cennected message. I can see the UDP port 5060 is open and I can ping the public IP (the same I gave to the softphone). Any Help please?