Introduction to conference phone function keys

1. Handsfree key: press this key to make and receive calls

2. Redial key: In a call, press this key to redial the last dialed number.

3. Speed dial key: You can quickly dial the number stored in the phone.

4. Flash key: In a call, press this key to switch to the waiting dial state.

5. Hold key: In a call, press this key. At this time, the two parties on the call will not hear each other's voice, but they can still maintain the call line connection.

6. Mute key: During a call, press this key to turn off the microphone, and the other party cannot hear the local voice.

7. Volume + key: Increase the sound of the current speaker.

8. Volume-key: Decrease the sound of the current speaker.

9. Save key: Quickly edit the dialed number.