I don't know if I'm dumb or the set up is, but every time I seem to be on the phone (RNS 510 Bluetooth of course) the sat nav doesn't mute or stop the directions which Mrs Columbus interrupts em all the time which is as annoying to me as it it to the person on the other end of the phone.

I have tried many things in the set up menu, but I really want a setting like "mute directions during phone calls".

I there such a thing or do I have to continue to cancel my nav on every call?