Using the PIN for Master Setup
The Master Number can also be set up using the PIN. This is only possible for the first master
number that is added to the system. Subsequent masters must be added by a master using
the MASTER command. The PIN is the last 5 characters of the IMEI number written on the
QUECTEL GSM module sticker. The command is sent as follows:
Master 07000000000,37212. for module with IMEI 355073034237212
2.4 Allowing Master Control for all Users
To enable any user to control master commands (such as adding and removing numbers)
the MUSER command is sent to the board, by a master number, as follows:
MUSER ENABLE Allows any valid user number to modify settings
MUSER DISABLE Only master numbers can modify settings
By default MUSER is set to disable full access for all users. N.B. Only master numbers can add
other master numbers despite this setting
2.5 Adding a User Number
Any telephone number of at least 5 digits where caller ID is available is valid. The system
only compares the last 8 digits (if present) of any calling number against the numbers stored
in memory. Therefore it is not necessary to enter the international dialling code format of
the telephone number.
i.e. for 07000000000 only the characters shown in BOLD text are considered
The ADD command is used to add a new telephone number. To add a new number any
master phone must send the following SMS text message to the system telephone number:
add<space>number. e.g. Add 07000000000.
If TEXTRES is enabled the system will respond with the ‘Operation Successful’ message.
2.6 Removing a User Number
The REMOVE command is used to remove an existing telephone number. To remove an
existing telephone number any master phone must send the following SMS text message:
remove<space>number. e.g. REMOVE 07000000000.
The REMOVE command must be sent for each number in the memory. The user can specify
which number type is desired to be removed and only that type will be removed regardless
of whether the number is already in the memory in a different form.
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