Hi ladies and gentlemen, I'm evaluating the free version of 3CX. I have the 3CX running on its own subnet and I have the extension devices running on another subnet. I'm using Grandstream HT-286 devices and Counterpath X-Lite softphone. Whenever I make a call from any device to any device the calls drop after approximately 30 seconds. Does anyone have any idea why? I also have a voip provider account and can make outbounds calls and receive inbound calls no problem but I still have the 30 second limitation. Is this a limitation of the free version or is it a bug or is it my setup?