Mitel SX-2000 EL Information Manual page 89

To retrieve a call from Hold on the SUPERSET 4001 telephone set, press the Hold key again.
To retrieve a call from Hold on a multi-line telephone set, press the line key of the line on Hold.
Microphone key
During a handsfree call, press the Microphone key to mute the microphone. Press the
Microphone key again to turn muting off. The indicator lamp built into the Microphone is on
when the microphone on.
Speaker key
During a call, press the Speaker key to switch from handset mode to handsfree mode. To return
to handset mode, press the Speaker key again.
Softkeys
When you press the SuperKey, the softkeys provide programming functions. The function of
each softkey is defined by its corresponding field on the LCD. On the SUPERSET 4150
telephone set, the softkeys are touch-sensitive areas of the LCD.The SUPERSET 4150
telephone offers full-duplex speaker-phone functionality.
Liquid Crystal Display (LCD)
The LCD displays
• Time and date while the telephone set is idle
• Softkey labels during programming and feature access
• Call status during telephone calls
• Message information
• System status messages.
To adjust the LCD contrast, press the Up Arrow and Down Arrow keys while the set is idle.
Message Waiting Lamp
The Message Waiting Lamp flashes when another telephone set has left you a Callback
message. The Message Lamp is on when you call a telephone that is capable of receiving a
Callback message.
Handset, Speaker, and Ringer Volume Control
The user can adjust handset, speaker, and ringer volume.
Ringer Pitch Control
The user can adjust ringer pitch.
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Peripherals
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