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 56)
• Off-Hook Monitor (page 57)
• Handsfree Answerback and Operation (page 57)
• Voice Recognition (page 57)
• Flash Feature (page 58)
• Conference Calls (page 58)
• Background Music (page 59)
• Timed Reminders (page 59)
• Caller ID (page 60)
• Waking Class of Service (63)
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 assign an FF key as a Mute key.
To block outgoing audio using the MIC key
1. Pick up the handset or press the ON/OFF key.
2. Dial the desired number.
3. To mute 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.
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Key Telephone User Guide