I have had my s7 Edge for a year and this past week it just all of sudden will drop calls. The two locations it is dropping calls is in my house upstairs in the master bedroom and bathroom. Sometimes the person I am speaking with can not hear me until I walk away from were I am standing. The other location it always drops my call is my driveway while I am backing out. I live in Apache Junction, Arizona 85119 and this is the 1st time I am experiencing call drops and dead zones.