Send direct commands for APN, server settings, status and reboot.
Full command listNAVTELECOM FAQ
Find your next step
Find the next step: set up a tracker, diagnose missing data, connect remotely or integrate your platform.
Software & remote managementWhere can I download NTC Configurator or NTC Control?
Choose the application and package for the operating system you use.
NTC Configurator
Configure, update and diagnose Navtelecom devices from a computer.
NTC Control
Connect to supported devices and perform configuration work from a phone.
Software & remote managementHow can I manage devices remotely?
CAN & integrationsWhere can I check supported vehicles for CAN decoding?
The current list of supported vehicles and available CAN decoding files is published in DRC.
Open supported vehicles listTroubleshootingWhy is there no data from the CAN bus?
- Check the wiring and voltage
Connect CAN High to CAN High and CAN Low to CAN Low. With the vehicle electronics active, measure each line relative to vehicle ground. Both lines are typically close to 2.5 V when the bus is recessive. During communication, CAN High rises toward approximately 3.5 V and CAN Low falls toward approximately 1.5 V, so a multimeter may show an averaged value within these ranges.
If a multimeter is unavailable, a device input configured as an analog input can be used temporarily to check the line voltage. Disable voltage averaging so changes are not smoothed out.
- Check for raw CAN traffic
Enable the CAN interface and use Passive mode for the initial test. Open CAN Spy, select the CAN interface of the connected device and run Auto Detect to identify the baud rate. You can also select the baud rate manually and click Start.
When the connection is correct, captured messages appear in the Messages table. If the baud rate is detected but only about five messages or fewer are visible, try another CAN connection point. If no baud rate is detected, recheck or swap CAN High and CAN Low and verify that the selected twisted pair is actually a supported CAN bus.
- Configure decoded data transmission
After raw messages are visible, select the correct decoding file in CAN Spy and write it to the device. Then open the device configuration and enable transmission of the required decoded parameters on the Data Transfer tab before writing the configuration to the device.
Installation & wiringHow can I verify that the device is installed and configured correctly?
- Check the device
In NTC Configurator, verify power, cellular registration, GNSS validity and values from connected CAN equipment and sensors.
- Check transmission
Enable the required fields in Protocol Settings and write the configuration to the device.
- Check the platform
Verify incoming messages and timestamps, then check sensor mapping, units and displayed values. Updating values in Configurator alone does not prove that the complete installation is working.
- Test actual events
Test the configured ignition, inputs and connected equipment under the intended operating conditions before completing the installation.
Installation & wiringHow should power and ground be connected?
Whenever the installation permits, connect the tracker’s power input directly to the vehicle’s low-voltage battery through the fuse specified in the wiring diagram. The battery is generally the most stable available supply point.
Avoid taking power from accessory circuits, lighting circuits or other loads when possible. Switching and voltage fluctuations at these points can cause resets or unreliable operation.
Connect GND directly to the battery’s negative terminal or to a reliable vehicle ground. The contact point must be clean and secure. Avoid painted, corroded or mechanically unstable grounding points.
Always follow the connection diagram for the exact device model.
Getting startedWhat information should I send to Technical Support?
Send the following information in one request so Technical Support can begin investigating without asking for basic details:
- Device identification
Exact model and IMEI
- Software versions
Device firmware version and the version of NTC Configurator used
- Configuration
The current device configuration file
- Issue description
What you expected, what actually happened, and the exact date, time and time zone of the problem. Mention whether the issue can be reproduced.
- Telemetry data for the affected period
Always attach the relevant telemetry interval. It can be downloaded over a USB cable, through the mobile application, or remotely through NTC Configurator/RCS.
- Relevant debug log
For cellular issues, record a GSM debug log. For connected equipment or interface issues, record the applicable RS-232 or RS-485 debug log. These debug logs can be recorded only while the device is connected by USB.
A precise timestamp and the complete supporting data significantly reduce diagnostic time.
Email Technical SupportTroubleshootingWhat is the quickest way to check why a tracker is offline?
Send *?DIAG 1 by SMS to the phone number of the SIM installed in the tracker, then follow the branch that matches the result.
*?DIAG 1Send this SMS to the tracker to request cellular diagnostic codesDid the tracker reply?
- Yes — read the diagnostic reply
The SMS reply contains up to eight recent cellular-network diagnostic codes. Compare them with the error code table to check the SIM, network registration, mobile data or monitoring server. Save the full reply and the time of the test.
- No — check SMS delivery first
Check the message’s delivery status or request an SMS delivery report where your phone and operator support it. A sent message is not necessarily a delivered message.
- SMS not delivered
Check that the tracker has power, the SIM card is installed correctly, and the SIM card is active and registered on the mobile network. Confirm that the phone number is correct, cellular coverage is available and the SIM can receive SMS.
- SMS delivered but there is no reply
Check that SMS replies are enabled in the tracker configuration and that the SIM can send SMS. If the tracker is roaming, also check that SMS replies while roaming are enabled and that the operator allows outgoing SMS in roaming. No reply alone does not identify the fault.
- Delivery status unknown
Enable SMS delivery reports on the phone or device you are sending from, where supported by the device and mobile operator, then send the SMS again. If the delivery status is still unknown, check that the tracker has power and that its SIM card is installed correctly and active. If needed, ask the mobile operator to confirm delivery. An unknown status does not prove that delivery failed; do not assume the tracker received the command just because your phone shows it as sent.
If the issue remains, connect to NTC Configurator when possible, check Telemetry Data and send the configuration, diagnostic reply and telemetry from the affected period to Technical Support.
STILL HAVE QUESTIONS?
Talk to Technical Support
Include the model, IMEI, software versions, configuration, problem time and telemetry from the affected period.
