3
Connecting Your Phone
This section shows and describes the connectors on your Cisco Unified IP phone.
8
Volume button
Increases or decreases handset, headset, ringer, or speakerphone volume.
9
Mute button
Toggles mute on and off.
10
Speaker button
Toggles speaker on and off.
11
Headset button
Toggles headset on and off.
12
Keypad
Functions as a traditional phone keypad.
13
Handset
Functions as a traditional handset.
1
Optional DC adapter port (DC5V) for phones
not provided with inline power
2
Headset port
3
AC-to-DC power supply
4
AC power cord
Name (continued)
Description (continued)
Summary of Contents for 521SG - Unified IP Phone VoIP
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