In this time we will introduce some of the function keys used by the telephone.
Scene：
One side of the meeting generated noise, how quickly the host mute?
We can use the following function keys on the telephone keypad to implement：
The Leader presses the *5 on the phone to mute all participant on the line
The Leader presses the #5 on the phone to open all participant on the line
Participant press the *6 on your phone to mute your own line
Participant press the #6 on your phone to open your own line.
The following are some common and useful keyboard commands:
*1 Dial-out to a participant – Leader Only
*2 Begin/end conference record – Leader Only
*5/#5 Mute/unmute all participant lines – Leader Only
*6/#6 Mute/Unmute your own line
*7/#7 Lock/Unlock conference (including operator) – Leader Only
*# Participant Count