AASTRA DT292 for BusinessPhone User Guide EN - Manual (Page 12)

Important
BusinessPhone – Cordless phone DT292 12
IPEI code
If your phone is blocked because an incorrect PIN code has been
entered three times, you can unlock it with the IPEI code
(International Portable part Equipment Identity). After entering the
IPEI code, you must enter a new PIN code.
The IPEI code is a unique code which has been assigned to your
phone. The IPEI code can be found in the
ShowIPEI
menu.
If your phone is blocked,
PIN Blocked, Unblock?
appears. The
phone must be unblocked before it can be used again.
To display the IPEI code
Route: Information » ShowIPEI
Select
ShowIPEI
and press
Enter PIN
: is displayed. z
Enter the PIN code for your phone (default 0000) and press
The 13-digit IPEI code is displayed.
Press to leave this menu
Note: Write down the IPEI code for future use. If you cannot
retrieve the IPEI code, please contact your system
administrator. Keep the IPEI code secret to prevent misuse
of your phone.
Un-block the DT292
Press
Backdoor:
is displayed. z
Enter the IPEI code and press
EnterNewPIN:
is displayed. z
Enter the four digits of the new PIN code and press
RepeatNewPIN
is displayed. z
Enter the new PIN code again and press
Either
New PIN accepted
or
Wrong New PIN
is displayed. In the
latter case, the new PIN and the code you have just entered do not
match. If
New PIN accepted
appears, you can use the phone
again.