AASTRA DT4x2 for BusinessPhone User Guide EN - Manual (Page 42)

During Calls
BusinessPhone – Cordless DT412/DT422/DT432 42
During Calls
The BusinessPhone Communication Platform allows you to handle
calls in many different ways. You can make an inquiry, transfer the
call, create a conference, mute the microphone and ringer or put
the call on hold to perform other tasks.
Loudspeaking (Handsfree)
This function is extremely useful in situations when you need to
have a conversation over the Cordless while having your hands free
for other tasks (handsfree).
To activate Loudspeaking during a call: ä
Press the middle Soft key to activate handsfree speaking
mode.
You are connected to the caller via the loudspeaker and
microphone.
Note: You can adjust the volume, see section “ Audible
Adjustments ” on page 104. ä
Press again to deactivate handsfree speaking mode.