AASTRA DT4x3 for BusinessPhone User Guide EN - Manual (Page 29)

AMT/PUD/TR/0119/1/2/EN 2012-08-13
User Manual
Cordless Phones for BusinessPhone™
23
1 Press "Menu".
2 Select .
3 Select “Locks”.
4 Select "Phone lock"
5 Select “Auto phone lock”.
6 Select “On”, "On in charger", or "Off".
7 Enter PIN code. If the PIN code is forgotten it can be removed by the system
administrator.
8 Press "OK".