AASTRA DT292 for BusinessPhone User Guide EN - Manual (Page 45)

45 BusinessPhone – Cordless phone DT292
Information
Erase Information, Save Information
#23#
Press to erase info
Wait for the call icon to stop flashing
Press to finish the procedure
or *23*#
Press to deactivate and save for later use
Information is passive.
Wait for the call icon to stop flashing
Press to finish the procedure
Use saved information
When the information is switched off: *23*#
Press to activate saved info
Information is active.
Wait for the call icon to stop flashing
Press to finish the procedure