I have freepbx 14 with 4 POTS (from ATT) and i have setup the dahdi and the inbound and outbound for all 4 POTS and I have been experiencing this issue when two user are on the phone concurrently if another call comes in it doesn’t ring any extension (i forgot to mention that all the extensions are setup in one ring group) but if two users are taking a call concurrently two more users can make an outgoing call without a problem. my question is why i can’t take more than two calls concurrently but i can make two more calls? How can i resolve the issue and be able to receive up to four calls at the same time? I’m using Sangoma A200 with 6 fxo. I’m new to freepbx in my previous jobs I had worked with avaya IP Office
First, how do you have your POTS setup with ATT? Do they have these setup as individual lines (one DID to one line) or do they have you setup in a “Hunt/Roll Over” group so that calling a DID hits line 1, then line 2, etc.
Knowing how the calls are actually being sent can help figure out what is happening with calls 3 and 4.
OK. Do all the DIDs for these POTS line ring each line itself? Or do all DIDs always end up at the “lead” POTS line?
In other words, do you have a way to call POTS 3 and 4 directly to see if the calls are even hitting the PBX in general. If they are but you can never get past POTS 2 in the Hunt, then ATT has screwed up the hunt.
So the simplest test, if possible, call the phone number that hits POTS 3.