Hi. I have a samsung j3 smartphone. It has VoLTE and HD voice. When I make an HD call, I see an HD symbol near the timer on the left of the dialer screen as does the person I'm calling. The call quality is very good.
I've read that some people on their phones will also see HD symbols near their contacts.. meaning that when they are not making an HD call, some or all contacts will have an HD symbol near them I suppose indicating that these people have HD voice. But I don't see anything like that near my contacts. Is that something or a feature that some phones have and others don't?