It would be very user friendly to allow outside parties to call into a scheduled conference before the actual start time. Most callers feel more confident being able to establish the call a few minutes in advance, just in case there is some kind of trouble. If they do, 3cx rudely just dumps the call - no other conference service works this way. Most of my people insist on using an outside conference service as a result. A 10 - 15 minute pre-scheduled-time window would be plenty. Oh.. and lose the 3cx footer! I paid for this software, I shouldn't be forced to advertise for you.