I have read posts re this and don't see a solution except developing into a debate on whether or not its low. The headset volume is extremely low on this phone. Were talking like turn down ac fan in car to hear low. I just got the phone and it does every thing great except calls! The hearing aide app does not increase volume. Yes I tried different headsets and earbuds. They have got to come out with a software fix or I am going to have to get a amp for my headset! Ridiculous!