Almost the same thing happen to me except I could not answer the call. The phone was ringing, the car was ringing and I, in traffic wasdesperate pressing all buttons on the car. As a last resort I pulled the phone out of my bag and tried to speak. But I've missed the call. Tried to return the call and was unable to to it using R-link. Turned off the R-link and then on again and the problem was solved.I think is a software bug that will be fixed with the next update (hopefully).