You mean this thing makes calls too?!?! It just keeps getting better and better.the basic "hear and be heard" sort of thing. Not interested in the bluetooth issue.
Top notch. Sound is very clear compared to my dusty iphone5.
btw, what the heck made you worry about the sound quality or wtv ?
It all depends on whether both phones and the network support "HD Voice".the basic "hear and be heard" sort of thing.
Call quality is very good, it is clearer than my 6s both ways.