AASTRA 4425 IP Vision for BusinessPhone User Guide - Manual (Page 91)

91 BusinessPhone – Dialog 4425 IP Vision
Write Text
Example:
444 ì
Enter the first character code, followed by the Volume Up
key.
66 ì
This sequence - numbers always followed by the Volume Up
key - gives the word IN_ .
Note: You can also write the following characters:
? -., !: /# * *
Press repeatedly.