HI, Have setup 3CX with 2 VOIP lines and 2 extensions. Have had difficulties with various things, mostly ports I think. Finally got 2 VOIP lines to register Sipgate (although I believe I will have problems with them from reading these forums) and Voipcheap. Forwarded each one to an extension and got them to ring, but when I answer there is no audio? Either from the phone I call on or the softphone I set the extension up on. Any tips guys, I like the look of this software and seems a little easier than something like Asterisk. Thanks in advance.