Cisco Unified 7821 User Manual page 5

8 Transfer button
9 Speakerphone
button
10 Headset button
11 Mute button
12 Keypad
13
Volume button
14 Contacts button
15 Applications button Opens or closes the Applications menu. Use the
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Transfers a call.
Toggles the speakerphone on or off. When the speakerphone
is on, the button is lit.
Toggles the headset on or off. When the headset is on, the
button is lit.
Toggles the microphone on or off. When the microphone is
muted, the button is lit.
Allows you to dial phone numbers, enter letters, and select
menu items (by entering the item number).
Controls the handset, headset, and speakerphone volume
(off hook) and the ringer volume (on hook).
Opens or closes the Directories menu. Use the Contacts
button to access personal and corporate directories.
Applications button to access call history, user preferences,
phone settings, and phone model information.