SMS commands can be sent to the device to get the device on-air. Any other configuration is done over the air.
SMS’s will only be received when the GSM modem is powered on. When the device is in its low power “sleep” mode the GSM modem is off. Cycle the external power or toggle the ignition line to initiate a wakeup and server connection attempt.
NB – the older G50 device uses a different format. This applies to all other DM devices.
The SMS text must start with a “#*” (without the quotes).
The SMS text command takes the following generic form of a command followed by a variable list of comma separated parameters:
String values are not contained in quotation marks.
Fields in  are optional.
This command allows you to set the APN name and optionally the user name and password to use in order to allow the device to connect on to the network. The format is:
#*,APN[,<apn name>[,<user name>,<password>]]
If the APN details are omitted then the APN will be erased and the device will use auto-APN.
This command allows you to set the details of the server that the device will connect to. The format is:
#*,SERVER[,<server URL>,<port number>]
If <server URL>,<port number> are omitted then the default OEM Server details will be used.
This command allows you to set the details of the third party ('data') server that the device will connect to. The format is:
#*,DSERVER[,<server URL>,<port number>]
If <server URL>,<port number> are omitted, then the third party server will be cleared.
This command will cause the device to perform a full reset when it receives the message. The format is:
This command will cause the device to SMS the last recorded GPS location. The format is:
#*<number to reply to>,POSITION
- This function is currently only available on Darts with Firmware version 1.17 and above.
- The device will only read the SMS when the modem is switched off usually at the end of an upload.
- The SIM card in your unit must be able send and receive text messages.
- Include the country code in the cellphone number - eg +27 for South Africa