AASTRA 4224 Operator for MX-ONE User Guide - Manual (Page 28)

Preparing the terminal
Dialog 4224 Operator 28
When the first 19 positions are entered, the display shows (only last
entered 19 positions can be shown):
.
When all the notes are entered, the display shows (only last entered
19 positions are shown):
.
Note: The flat A (
##
A) is shown as bA, i.e. b is used to
show both the note b and the flat sign.
Display contrast
You can adjust the display contrast level.
ê *5
Press and hold simultaneously until a ring signal is heard.
The display shows
Setting Mode
. Х Ф
Alarm Press.
ì
Press repeatedly to adjust the contrast. #
Press to save and exit.
Note: To exit the menu without saving the changes, press
#
before you press any of the adjustment keys.
Program Intern
Program Callback