I was going through all the menus today and found an EQ setting for call quality. There is actually a built in hearing test in this phone! In dialer - > call settings - > more settings! How darn cool is that! Unfortunately my right ear is just a little worse than my left based on the graph after the 20 sounds it plays!
Sent from my SCH-I535 using Android Central Forums
Sent from my SCH-I535 using Android Central Forums