Ford Focus voice control not working?

My samsung phone bonds with my stereo ok and I can make and receive calls but the screen shows no phone connected? The voice control also has no voice? I have reset the module a few times and disconnected the battery too but I still don't hear the ladies voice. When I press the button on the stalk next to the steering wheel the screen changes to the voice screen but nothing happens after that? I have tried to check how many phones are bonded to the stereo but when I press the button to check this it just kicks me out of the screen? Don't have a clue what to do next??? Thanks