provided by Star2Billing S.L.

I am using asterisk 1.4.26.1 and a2billing 1.3 yellowjacket. I have three trunks connected from a2billing to three different places. The problem in one trunk is that calls are going through but the ivr is constantly repeating the balance and the destination phone rings, after they pick up the phone they do not hear anything while the source side is repeating the balance. While the other two trunks are working perfectly fine. I deleted and recreated the trunk and even changed the ip to another trunk but the problem is still there.

What are the trunk settings?
is the trunk set up just in a2billing or in freepbx as well?
What is your incomming? SIP account?, hardwired phones?
With a little info we may be able to help...