The current licensing model is not optimal because first-time users cannot see a full power of 3CX. They start with a very limited version without most of a key 3CX features. And there is no way to unlock Free edition even for 2 sim calls with all features. The result is a lost lead. It would be better to make a 30 day Trial of full Pro edition and only then convert it to Free Edition. This way every lead will quickly understand that it is on the right way.