iPad and Spotify
When listening to music on my IPad with Spotify and a bluetooth shower speaker my IPad will start calling random phone numbers. I thought maybe it was my phone doing it but the phone is not involved. The strange thing is my IPad doesn't even have a phone dialing app on it so I don't know how it is doing it. Once it starts it will keep calling the same number repeatedly until I turn the IPad off.
iPad Pro Wi-Fi + Cellular, iOS 11.1