User's Manual
IntelliTrac A3 Series User Guide
Systems & Technology Corp. © 2009
This document contains confidential, restricted, and proprietary information. The document has been prepared for the
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2.4 Communication Settings
There are two communication modes for the IntelliTrac A series device to communicate to the control center.
One is SMS, and the other is GPRS (TCP/UDP). The device should be set communication parameters
before install the device to vehicle.
(1) SMS Configuration
Setting SMS control center phone number or short code by using AT$SMSDST command. For example,
the SMS control center phone number is +886123456789, issue the AT$SMSDST command in
HyperTerminal like below:
AT$SMSDST=+886123456789
OK
Then you can try to use cellular phone or SMS gateway to send a SMS message to the A series device.
Send a SMS message Æ "AT$MODID?"
Device will response：
$MODID=101000001
OK
This proves the mobile phone SMS connects successfully.