V: 12/19/2024 - 1 ©2024 Snom Technology GmbH 8/19
Short User Manual
Audio control keys (see →
Getting started
→ Getting to know the D140 / D150 components
→ 10)
5 audio control keys are used to adjust the volume, for muting and unmuting the microphone, to activate
speakerphone and headset mode.
Volume + / -
Speakerphone
Mute
Dedicated, customizable function keys (see →
Getting started
→ Getting to know the D140 / D150
components
→ 11)
6 preprogrammed, variably programmable function keys have their
factory settings printed on the key. Other functionalities can also be
programmed onto them.
Default setting:
Adjusting the volume of the ringer when the phone is idle or ringing
Adjusting the volume of the loudspeaker in handset, casing, or
headset, respectively, when in call
Toggling between handsfree and handset mode
Dialling and accepting calls on speakerphone
Muting and
unmuting the
microphone
Toggling headset
mode on and off
Headset
Message
Retrieving messages from the
mailbox (if applicable)
Directory
Accessing the built-in directory
of the phone
Settings
Invoking the settings menu of
the phone user interface (PUI)
Hold
Holding/unholding an active
call
Transfer
Transferring calls
DND
Toggling do not disturb (DND)
mode for all identities
registered on the phone
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