This is complicated to duplicate... setup:
PBX A has A2B installed and has all out/in voip trunks.
PBX B is in office B and connects to PBX A via iax2
PBX C is in office C and connects to PBX A via iax2
A2B has a 1 DID destination for each office that rings a ring group
A2B has also 1 failover destination for office B and another for office C that goes to a cell phone, where VOIP call is set to "NO" and priority is set to "2"
BAD Strange behavior:
user in Office B places a call to the DID in Office C.
Office C rings and answer the call.
Both offices finishes and hangup.
Immediately both cell phones will ring and when they both answer they are connected together. The first cell to answer will hear a line ringing. If only one party hangs up and the other stay on the line. the party that stay on the line will hear it ringing and the cell of the party that hung-up will ring. the call is completed.
This happens every time.
Failover works fine in the event that either PBX goes off line.
Running A2b 1.9.3 PIAF 1.4 on all PBXs.
Very annoying....
does anyone have a fix for this?