AASTRA DT4x2 for MX-ONE User Guide EN - Manual (Page 38)

Outgoing Calls
DT412/DT422/DT432 38
Off-hook dialing
If you prefer to dial a number off-hook: æ
Press.
Dial tone. å
Key your number on-line.
Notes:
When dialing this way, you cannot press C (see display) to
erase digits.
The number is not stored in the Call list.
Off-hook dialing is not supported by IP DECT.
Handsfree
While you are waiting for a connection, dial tone or during the call: ä
Press the middle Soft key.
You are connected to the caller via the loudspeaker and
microphone.
Note: Which key to press depends on the answering
method used, to change the answering method see section
“ Change answering method ” on page 34 .
End the call æ
Press.
The duration of the call is displayed.