AASTRA DT4x2 for MX-ONE User Guide EN - Manual (Page 104)

Settings
DT412/DT422/DT432 104
Language
The display messages are available in eleven languages: Danish,
Dutch, English, Finnish, French, German, Italian, Norwegian,
Portuguese, Spanish, and Swedish.
When you have entered Settings: г б
Select General. á
Select Language. â
or
ã
Select the required language.
Select
Press (see display).
The selected language is shown.
Change text size
Note: This function is only available for the Cordless DT412
and DT422 phone.
You can change the text size in the display.
When you have entered Settings: г б
Select General. ã
Select Text size. á
Press. â
or
ã
Select the text size.
You can choose between
Small and Medium .
Select
Press (see display).
Selected size is shown.