Bluetooth Call Waiting Goes Straight to Voicemail
While on a current call in car when connected via bluetooth, I receive a 2nd incoming call, the incoming call options are displayed for a fraction of a second and the call is then diverted straight to voicemail.
I don't get chance choose hold call & answer or end call & answer.
When not connected via bluetooth, call waiting waiting works fine.
Car is a 2017 Subaru WRX.
iPhone 8, iOS 11.2.6