Matrix
SIMADO GFX11 System Manual
61
International Mobile Equipment Identity (IMEI)
What’ this?
• It may happen your unit GFX11 is misplaced or stolen. Very
important personal information is stored and you donot want
somebody to misuse it. To help the user, manufacturer of GSM
Module provides a code known as International Mobile Equipment
Identity (IMEI) which can be sent to the network operator. The
operator will use it to put your GSM module of the specific
GFX11, in unoperational state. Thus, the IMEI code is used to
identify an individual GSM Module. The IMEI number is normally
printed on the GSM Module.
• The International Mobile Equipment Identity (IMEI) Code is an
unique 15-digit code used to identify an individual GSM phone to
a GSM network. When a phone is switched ON, the IMEI code is
transmitted and checked against a database in the network’s EIR
(Equipment Identity Register).
• The network’s Equipment Identity Register defines three registers
known as “white list”, “gray list” and “black list”.
• The ‘white list’ consists of all equipment identities that are
permitted to use the network. The ‘black list’ contains all
equipment identities that are barred from using the network (when
a phone is reported stolen or is not type approved). Equipment on
the ‘gray list’ are not barred from using the network services but
are tracked by the network (for evaluation or other purposes.)
How to use it?
Use the following command to know the IMEI Code of the GSM
Phone:
#*-13
Important Points:
• After giving this command, the user gets a confirmation tone.
After this the user has to go ON-Hook. The IMEI Code is
displayed on the LCD of telephone instrument. The format of
display is NNNNNNNNNNNNNNN.
• The parts of the 15 digit IMEI code are:
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