NEC DT820 Quick User Manual page 2

Group Listen
To initiate Group Listen:
• Place or answer a call using the handset
• Press the speaker key twice (do not hang up)
Note: You can talk to the caller through the handset. Your coworkers hear your caller's
voice over your telephone's speaker.
When you press the Speaker key once, you turn your Speakerphone on. The second
press turns on Group Listen. Pressing the Speaker key a third time cancels the Group
Listen Feature.
Call Hold
A call in progress may be placed on hold at the telephone by pressing the hold key, and
retrieved by pressing the flashing line key.
Microphone Mute
The Mute Key allows you to switch off the handset and speakerphone microphone
temporarily.
To mute the call so that the called party cannot hear you, press the Mute Key.
To cancel mute and resume normal conversation, press the Mute Key again.