So i'm going through the setup of 3cx, and historically on every PBX system, you always have to dial 9 to get an outside line. I'm wondering as I'm setting this up, is that really necessary any more? If your internal extensions are only 3 or 4 digits, and since the SIP Handsets don't send the call until either the Handset is picked up or the speaker enabled or the send button is pressed. They why not finally get rid of the Dial 9 requirement? My 3cx system is going into a small office with about 16 users. So by no means a large scale deployment. Thoughts?