AASTRA 4422 IP Office for BusinessPhone User Guide - Manual (Page 78)

Settings
BusinessPhone – Dialog 4422 IP Office 78
Ring Signal Tone Character
There are 10 different programmable ring signal tone characters on
your phone, each corresponding to a digit between 0 and 9.
Settings
Ô
Press to enter the Settings menu.
The display shows the first two configuration options:
ì
Press + or - until the Ring Character option is selected.
Â
Press.
The current tone character is displayed (example):
z
Press a digit to select a new character (0-9).
The phone rings with the chosen character. Â
Press to store the selected character.
Settings
Х Ф
Press to return to idle mode.
If you want to return to the previous menu, press the C-key.
Programmable Keys
Ring Character
Current ring character: 5
Enter new character (0-9):