Notification volume blows out your ears if you're on a call and a message comes in
Hello popjr58! We are sorry to read that you're having problems with the notifications while on a call. The phone shouldn't play any notification while on a call. Please tell us more. Are you using a Bluetooth earpiece? Are these regular text messages? If so, which app are you using? Does it only happen when you receive a text message?
AaronS_VZW