Hello all, Experienced installer here and I have come across a problem on a new installation this week. 3cx is installed on svr 2012 r2. Myphone is installed on windows 7 clients for testing and set up. Myphone clients register and show as connected both sides. I can call other myphone exextentions, but here is the problem, only once. When I make the first call it's all working well. When I hang up and call again nothing happens, it's as if you press cancel Nothing is showing in the event log or any log in 3cx. A reboot of myphone on the client fixes the problem but again only for the first call. If you make a second call from any myphone client it goes nowhere. Any ideas? Thanks.