Hi all, I have looked through forums but have not found a thread that has helped. I installed Skype and a new Skybee phone. All went like clockwork

No issues reported. My friend did the same. We can chat on Skype so that works. We can make each other's phone ring but there is no sound. The phone has a USB plug, a mike plug and a speaker plug. There is no reference to these connections in the phone manual.
First dumb question; do all 3 have to be plugged in or just the USB? Is there a windows setting(s) that has to be done? Even though it was recognised and installed fine I cannot see it anyware in the control panel hardware list.
In short I have no idea what to do next, any ideas?
regards