What isn't working? The app? Or once you removed it, your phone has trouble? Just asking if you need help.

Google Voice uses your minutes. The way GV works, it calls your phone and then connects you to the person you want to call. One Dialer can't get around that. The way to get around using your minutes would be if you have the "Calling Circle" or whatever it is called on your service and have your GV number as one of those numbers. Then all calls will not use minutes. Texts from GV website are free...and I *think* text through the One Dialer uses data and not your text quota. (I think)