this just started yesterday 15/1/17 - my daughter has had the 6 for a while and me any my wife both have 4's. we have never had any problems but now when she calls us we hear her say "can you hear me?" and then nothing further.. she can hear us though... when we call her we hear nothing.... Coincidentally this started the same day she got her screen repaired at Apple. She took the phone back and evetually they gave her a brand new one and it still happens... I suggested going to virgin and get a new sim card which she did but it still happens... Any idea whats going on?