I use Issabel 4.0.0-6.
I create Ring-Group Number = 600 , add number to Extension List and set Destination if no answer = Terminate.
In extension I set callgroup = 600.
when I call to number 600 then it suddenly terminate. If I change Destination if no answer to extension number then it call to that extension. It can not call to number ring group. It have no any ring when call ring group but it go to Destination if no answer.
How to fix ?