Hi, I have a 3CX (v10) installed on a server 2008 R2 machine (firewall disabled). All our desk phones work fine (spa9XX) and any machine running X-Lite (or even ekiga) are able to make/receive calls. But any of our windows 7 machines which try to use the latest 3cx softphone all report no audio. The logs on the server who no RTP packets were received. I've tried disable all the client machine firewalls but it makes no difference. There is no NATing between the clients and the server. As I said pretty much any other softphone works fine. Does anyone have any suggestions?