I'm having a problem with callbar when using the built in keypad. During a call when I open the callbar keypad and I press a number, it continues beeping as if I'm holding the number down. There is no way to stop the beeping, other than ending the call. This only happens in call bar and doesn't happen in the apple phone app. Has anyone else noticed this? EDIT: I forgot to add that the constant beeping is not heard on my iPhone. But it continues to beep on the other callers end. Has anyone tested this out and listened to it on the other end of the call?