title: Sending GCM push notification to a particular phone using its phone number(the device that has this phone number installed my app. )
body: <p>I was searching this for the last 2 days but I cannot find any answer. All what I want is to send GCM push notification to a particular phone using its phone number instead of register id(of course the device that has this phone number installed my app. ).
  Is this possible? If so how? </p>