Comdial GCA70-25 Station User's Manual page 49

GCA70-251
Muting Your Station (not available on 8101N)
By using the MUTE button, you can block transmission of your voice to the distant
party. You can do this whether you are using the handset or the speaker.
To mute your station,
1. PRESS MUTE (mute function and light turn on). You can still
hear the distant party, but he or she cannot hear you.
To speak to the distant party,
1. PRESS MUTE again (mute function and light turn off).
Single Line Proprietary Telephone Station User's Guide
Other Advanced Features
43