DT-11G GPS Tracker
GPRS Commands
3rd param is lgth following *
in Hex (see second line below)
D  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 19 20
H 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 11 12 13 14
(lookup hex values for longer lengths than 20 char)
Find/Replace xxxxxxxxxx with Tracker ID (10 digits)
Copy and paste into Traccar Custom Command Data

Master Control Number
[SG*xxxxxxxxxx*0011*CENTER,9995551212]

Set Time Zone (Last Digit)
[SG*xxxxxxxxxx*0007*LZ,1,-4] (EDT)

Set Server IP,Port (5093 for DT-11G)
[SG*xxxxxxxxxx*0015*IP,45.76.255.14,5093]

Set APN (apn-name,user,pwd,codes)
[SG*xxxxxxxxxx*001e*APN,fast.tmobile.com,,,310260]

Get Position (every 20s for [TIM])
[SG*xxxxxxxxxx*0002*CR]

Upload Interval (sleep/wake and report in seconds)
[SG*xxxxxxxxxx*000a*UPLOAD,600]

Status Lights (0=off, 1=on)
[SG*xxxxxxxxxx*0005*LED,1]

Position Lights (0=off, 1=on)
[SG*xxxxxxxxxx*0005*LSN,1]

Restart Tracker
[SG*xxxxxxxxxx*0005*RESET]

Power Off Tracker
[SG*xxxxxxxxxx*0008*POWEROFF]