Verizon LG G2: Inconsistent Call Volume
So I just got the LG G2 over this past weekend and I love it. One thing I have been noticing is that the call volume is usually nice and loud, in fact sometimes too loud. But whenever I call my mom it sounds very low..both when it's ringing and when she speaks. Same thing happened when I placed a call to my doctor but every other call has been fine. When I was on my GS3 and called my mom it sounded a lot louder than with this phone. When a call has low volume like that, is that a problem on my end or the other end? I can still exchange the phone so any input is much appreciated!!!!!