Opens or closes the Applications menu. Use it to access call history, user
preferences, phone settings, and phone model information.
Applications button4
Transfers a call.Transfer button5
Places an active call on hold or resumes a held call.Hold/Resume button6
Allows you to dial phone numbers.Keypad7
Selects the speakerphone as the default audio path and initiates a new call,
picks up an incoming call, or ends a call. The speakerphone audio path
does not change until a new default audio path is selected (for example,
by picking up the handset).
Speakerphone button8
Controls the handset and speakerphone volume (off-hook) and the ringer
volume (on hook).
Volume button9
Toggles the microphone on or off.Mute button10
Dials the last dialed number.Redial button11
Returns to the previous screen or menu.Back button12
Phone handset.Handset13
Cisco Unified SIP Phone 3905 User Guide for Cisco Unified Communications Manager 8.6
OL-23424-01 3
Features of Your Cisco Unified SIP Phone 3905
Buttons and Hardware
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