This is probably such a basic question but it really confuses me. I have another thread on here with a question about adding VoIP, but my main configuration will be an Elastix server, with 4 FXO ports connecting to 4 analog business lines, then 5-7 IP phones connected to the system. 99% of the time no more than 4 people will be on the phone at once so this works for now. Here's where I get confused, let's say my 4 phone numbers are 416-000-0001, 416-000-0002, 416-000-0003, and 416-000-0004 with the 0001 being our main line that only customers would call in on. If a customer calls on 416-000-0001 and dials a users extension, then line 0001 is of course in use. So would I need to set up a hunt sequence with my phone company so that 0001 hunts to 0002 then 0003 and 0004? That's what I'd assume I have to do. Then, let's say at the same time another user dials out, I assume elastix would dial out on 0002 so now both lines are in use. If another customer calls in on 0001, the phone company hunts to 0002, sees its in use, and then hunts to 0003 and elastix answers. Is that correct? Like will elastix know if 0001, 0002 and 0003 are in use, to dial out now on 0004 if a 4th person tries to make an outgoing call? Sorry if it's such a basic question it just always confuses me, just because people would only ever call in on 0001. With my phone company the outbound caller ID for 0002, 0003 and 0004 would all display the 0001 number so no one would ever know those lines.