Was driving and tried to do a voice command call, and noticed that it prompted me to connect my phone. It was odd though because my car was already playing music via bluetooth.

This has never happened before.
Anyone understand why this happens ?

 

There are 2 pairings, one for music the other for phone. 2 different devices can be paired at the same time. Occasionally my phone won't pair for calls but pairs for music. For me, restarting my phone fixes this whole I'm driving.