I'm experiencing 2 issues with this phone and I'm not sure if its the pbx software or the phone itself. The first problem is that when the extension goes idle it stops working altogether. No one can dial the extension from the outside. During the first 5 minutes of registration before idle its works fine. Second problem is that when video is enabled on the phone, the audio stops working altogether. To get audio back I have to disable video. Anybody have any ideas? fixes?