AASTRA DT4x2 for MD Evolution User Guide EN - Manual (Page 94)

SMS Text Messages
MD Evolution – Cordless DT412 / DT422 / DT432 94
C Press to delete characters (see display).
Ok Press to confirm SMS addresse (see display).
The screen displays
SMS
Back Press if you want to come back to SMS addresse (see
display).
å
Write the SMS message.
C Press to delete characters (see display).
Send Press to send the SMS message (see display).
The screen displays
Sending
for a few seconds and then the display
returns to the main screen.