Phone Audio Issue

[demonlordoftheround]

That doesn't sound right at all. I also use my phone for work, and never had anything like this happen.

You install an app recently? Although I don't know why an app would mess up the dialer. You might try backing up everything and hard reset back to factory stock and see if that fixes the issue. Or next time this happens, take your phone to the nearest Sprint store for a techincian to look at.