User Media object request camera clasrfication

From what I understand is the User Media object allows retrieving camera or microphone input from a user, with a webcam for a PC, a phone camera on a mobile if they have it.

Now I can get the object to request camera on any pc with it but how do you prompt to request camera on a non pc such a mobile phone?

I know it works for android and maybe ios? but what about windows phone 8 and other html5 camera devices?

Ok apparently not supported for windows phone 8, concluded.