AT+GTBSI / GTSRI — Connectivity
Network mode and LTE APN (AT+GTBSI), reporting server settings (AT+GTSRI).
Network & APN (AT+GTBSI)
Reporting Server (AT+GTSRI)
Keep TCP long-connection alive
AT+GTAPN — APN List
Up to 8 APN entries for automatic APN changeover. Enable auto-changeover below (AT+GTAAC).
Auto APN Changeover (AT+GTAAC)
Requires Manual Netreg=1 in GTBSI (set automatically)
Configure up to 8 APN slots. The device will cycle through them automatically when changeover is enabled.
AT+GTCFG — Device Config
Core device settings: password, GPS mode, reporting mask, events, LEDs, odometer.
Identity & Password
Used to authenticate all commands
GPS Behaviour
Wait after fix before recording (accuracy)
Battery & Odometer
Triggers GTBPL event
Config Expiry
Reporting & LEDs
AT+GTSIM / GTPIN — SIM & PIN
SIM PIN auto-unlock (AT+GTPIN) and SIM card binding (AT+GTSIM).
SIM PIN (AT+GTPIN)
Leave blank if SIM has no PIN
SIM Binding (AT+GTSIM)
Mode 1/2 unregisters device from network if wrong SIM detected
AT+GTFRI — Fixed Reporting
Controls how and when GPS position reports are sent.
Report Mode
0000 = no restriction (all day)
Intervals
Ignition OFF
>60s = GPS turns off between fixes
Ignition ON
Distance / Mileage Triggers
Degrees of heading change to trigger extra report
Movement Detection (suppress reports when stationary)
AT+GTNMD / GTGAM / GTTMA — Motion Detection
Non-movement detection (AT+GTNMD), GPS-assisted motion measurement (AT+GTGAM), and local time offset (AT+GTTMA).
Non-Movement Detection (AT+GTNMD)
Check any combination:
Default 2 = 28 seconds
Lower = more sensitive
Requires Bit3 above
GPS-Assisted Motion (AT+GTGAM)
Local Time Offset (AT+GTTMA)
AT+GTGEO — Geofences
Up to 20 circular geo-fence zones. Leave Mode=0 to disable a slot.
Mode: 0=Disabled 1=Alert on Enter 2=Alert on Exit 3=Enter & Exit
Click a Pin button in the table to select a zone, then click the map to place its centre.
AT+GTSPD / GTTEM — Speed & Temperature Alarms
Speed alarm (AT+GTSPD) and temperature alarm (AT+GTTEM).
Speed Alarm (AT+GTSPD)
Temperature Alarm (AT+GTTEM)
AT+GTMSA / GTHBM — Fall & Harsh Events
Fall detection (AT+GTMSA) and harsh braking/acceleration monitoring (AT+GTHBM).
Fall Detection / Motion Sensor Alarm (AT+GTMSA)
Press function key within this time to cancel
Harsh Behaviour Monitoring (AT+GTHBM)
Note: Requires GPS On Need = 2 (set in Global Config).
AT+GTDOG / GTFKS / GTOWH — Watchdog, Keys & Hours
Automatic reboot (AT+GTDOG), function key behaviour (AT+GTFKS), and working hours mode (AT+GTOWH).
Watchdog (AT+GTDOG)
Function Keys (AT+GTFKS)
Working Hours (AT+GTOWH)
AT+GTWLT / GTGLM / GTUPC — SMS, Alerts & OTA
SMS whitelist (AT+GTWLT), Google Maps SMS links (AT+GTGLM), and OTA config download (AT+GTUPC).
SMS Whitelist (AT+GTWLT)
Google Maps SMS (AT+GTGLM)
Sends SMS to direct numbers below on SOS/GEO/fall events
OTA URL tip: Set to
http://cfg.jdwilsh.com/ (trailing slash) and each device will automatically request /<IMEI>.ini for per-device configs.OTA Config Download (AT+GTUPC)
AT+GTJDC / GTPDS / GTDIS — Advanced Settings
Jamming detection (AT+GTJDC), power-down state preservation (AT+GTPDS), digital input (AT+GTDIS), and other settings.
Jamming Detection (AT+GTJDC)
Network Selection (AT+GTNTS)
Serial Port (AT+GTURT)
Preserve Device State (AT+GTPDS)
Report Control (AT+GTRPC)
Digital Input (AT+GTDIS)
e.g. 5 = 50 ms
Tracker Activity
Live view parsed from the nginx access log on cfg.jdwilsh.com.
Config Templates
No templates saved yet.
Device Names
Map IMEI numbers to friendly names shown in Tracker Activity.
Add / Update Device
Generate & Save
Build the config file from your current settings, then save or deploy it.
File
Served at cfg.jdwilsh.com/<filename>
Load Config
Deploy to Devices
Only changed commands are sent. Devices must be registered first.
No devices registered.