Operating instructions

Section 700 - Operation Chapter 5. Key Telephone Features
ICX-35-700 ICX (International), issued March/1999 175
Considerations
The fixed MIC key works both for handset mute and microphone mute. But only VB-D4,VB-D6/VB-
442XX-Series phones have the fixed MIC key, so others must assign an FF key as a MIC key.
Offhook Monitor
CPC-96, CPC-288, and CPC-576 All Versions
Description
Offhook Monitor lets you put a call on speaker while the handset is offhook. You can still
communicate with the other party via the handset, but you will also be able to hear the other party on
the phone’s speaker. The other party can only hear what is transmitted through your handset however,
because audio is not transmitted through your microphone.
Operation
To put a call on speaker using the Offhook Monitor:
Hardware Requirements
•N/A
Considerations
• Offhook Monitor is available on 44-Series phones only.
• Offhook Monitor can be disabled system-wide.
Offhook Signalling
CPC-96, CPC-288, and CPC-576 All Versions
Description
Offhook Signalling sends a tone to a busy extension to indicate that another trunk call has arrived or a
call is camped-on.
Action Result
1. During a handset call, press the
ON/OFF
key. • Other party is audible through speaker
and handset
• Phone’s microphone is mute
2. To take a caller off speaker (disable Offhook Monitor) but
continue the call via the handset, press the
ON/OFF
key.