We previously used FreePBX with Trixbox w/Zaptel. Moved to PBX in Flash and now using DAHDI on the 2 analog lines. (We are using a RHINO card)
The problem is that we have 2 analog trunks (with rollover from the CO) and when an incoming call comes in on line 1 we are able to answer just fine. However when another call comes in on line 2 (while a person is on line 1) the receiver (who answered the phone) currently on line 1 is not able to hear the caller on line 1 until after 30 or so seconds. But the caller and receiver on line 2 are able to communicate just fine.
This problem has been occurring since Dec when we first installed PBX in a Flash. We are desperately solutions and any hints, suggestions, or guidance would be greatly appreciated.