What does MUT mean in a car?

[ArianaDella]

The symbol for Bluetooth calling. After connecting a call, pressing MUTE will mute the call. TEL+ and TEL- are used to adjust the call volume. Here is some additional information: 1. The Bluetooth hands-free system in a car consists of the following components: a Bluetooth hands-free controller, a Bluetooth-enabled phone, a Bluetooth wireless headset, and a display screen. 2. The main functions of a car phone include: automatically recognizing mobile phones, connecting to a phone without the need for cables or a phone cradle; allowing users to control the phone without touching it (keeping hands on the steering wheel) and using voice commands to answer or make calls. 3. Choosing to make calls through the car's audio system means that when receiving or making a call, the car's audio will automatically mute, and voice transmission will occur through the audio system's speakers/microphone.