55 Key Telephone User Guide
6. USING ADDITIONAL FEATURES
The ICX provides a variety of additional features that you can use in your daily
work:
MIC or MIC Key (page 55)
Off-Hook Monitor (page 56)
Handsfree Answerback and Operation (p age 56)
Voice Recognition (page 56)
Flash Feature (page 57)
Conference Calls (page 57)
Background Music (page 58)
Timed Reminders (page 58)
Caller ID (page 59)
Waking Class of Service (62)

USING THE MIC KEY

You can use the MIC key on your phone or an FF key assigned as a MIC key to
mute the handset or microphone so that the party on the other end cannot hear you.
(The MIC indicator flashes when using handset mute and goes off when the
microphone is muted.)
Note: To use handset mute, you must ass ign an FF key as a Mute key.
1. Pick up the handset or press the ON/OFF key.
2. Dial the desired number.
3. To m ute your conversation:
Using the handset mute, press the MIC FF key.
Using the microphone mute, press the MIC key.
4. To turn the mute function off:
Using the handset mute, press the MIC FF key.
Using the microphone mute, press the MIC key.
To block outgoing audio using the MIC key