Specifications

GT300 @Track Air Interface Protocol
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+RESP:GTCBC,135790246811220,94,20090101000000,000A,0102070202
In the above message, “94” refers to the battery level with 94% charge left.
4.5.11. Power off the Terminal
Example:
If the backend server needs to remotely control the terminal to power off, the following command
can be sent to the terminal:
AT+GTRTO=gt300,A,0004
In the above command, “A” means to power off the terminal.
The command is accepted by the terminal when the backend server receives the following
message:
+ACK:GTRTO,135790246811220,PWROFF,0004,20090202172647,000A,0102070202
The terminal will then send the +RESP:GTPFA message and power off.
4.5.12. Report Google Maps Hyperlink
Example:
If someone wants to locate the device on Google Maps, he can send the following command to the
terminal via SMS:
AT+GTRTO=gt300,B,0004
In the above command, “B” means to report location with Google Maps hyperlink. This function
only works when the command is sent via SMS. If sent via GPRS, the device will ignore the
command.
The command is accepted by the terminal when the backend server receives the following
message:
+ACK:GTRTO,135790246811220,GGL,0004,20090202172647,000A,0102070202
The terminal will then report its current location with Google Maps hyperlink via SMS to the
originating phone number.
In the response SMS message, besides a Google Maps hyperlink to the current position, it also
report whether it is a successful fix, the UTC time from the GPS chip and the current battery level.
http://maps.google.com/maps?q=31.222073,121.354335
F1 D2009/01/01T00:00:00 B74%
http://maps.google.com/maps?q=31.222073,121.354335 is the hyperlink to the current location
in Google Maps.
F1 indicates it is a successful fix while F0 will be fail-to-fix.
D2009/01/01T00:00:00 is the UTC time when obtaining the position information.
B74% indicates that the battery level is 74%.