See also:

If a warning light turns oor a warning buzzer sounds
Calmly perform the following actions if any of the warning lights turn on or flash. If a light turns on or flashes, but then turns off, this does not necessarily indicate a malfunction in the system ...

Operating the system using voice commands
By following voice guidance instructions output from the speaker, voice commands enable to the operation of the Bluetooth® audio system with- out the need to check the display or operate the “T ...

When receiving a phone call
 - Answering the phone Press the off-hook switch.  - Refusing the call Press the on-hook switch. ...