Reading and writing sms commands – MIDLAND Geopoint Box SMS User Manual
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Reading and Writing SMS Commands
Reading and Writing SMS Commands
The SMS commands allows to set or read some tracker settings. These messages can be sent by a mobile
phone or by a GSM device able to send/receive SMS (i.e. a GSM modem).
When the tracker is switched on and there is GSM signal, it can receive any SMS command. If the tracker
receives a correct SMS command, an answer is sent to the SMS command sender.
If the message contains invalid characters, the tracker will not reply. If it contains invalid values, the tracker
will reply a message containing “COMMAND ERROR“. All commands start with the letter “r” (reading) or
“w” (writing).
NOTE: Ensure that the SMS commands are written exactly as shown in the table. Any change
(space, capital letter, small letter,...) could affect the command recognition.
NOTE: Before sending a new command, wait for the reply of the already requested one.
NOTE: Before enabling the cyclic position SMS sending (wposc), ensure that the SMS phone
number has been programmed.