Hi everyone! Im about to do my first VOIP installation and i have few questions. I put together my starting config on paper and it looks like this: 2 x Fanvil x3 - only cheap voip phone i found in white color 1 x Fanvix x5 - this one is for reception 1 x fanvil i20t -reasoning behind this one is - i couldnt find any video door intercom compatible in REASONABLE price so i opted for this one and just use video feed from camera just behind glass entrance to peek on the computer. I have 2 external phone numbers and a M1 E5-2420v2/16 GB RAM/WinServer 2012 rack server (this i already have doing other things also). All of this will be managed by free (for now) edition of 3CX. My questions are : - can i safely run 3cx on my only instance of Windows Server 2012 along with other things or rather virtualization is a must? - will selected phones provide Announcement system? (In the meaning i can say something from reception directly on speaker phone in other rooms) - can i set diffrent ringtone for calls comming from the door intercom (i20t) ? - are there any big drawbacks from using free version of 3CX? Because i didnt find any other than obvious 2 sim. calls. Thanks so much for any answers!