3G/4G Product

SUBJECT VIEWS FAQ TYPE MODEL LAST UPDATED DETAIL
How to switch between different functions? 10 Product Functionality 2020-12-04
Please refer to the link below:

How to switch between different functions?
Unable to register troubleshooting (4G light is abnormal) 2 Troubleshooting 2020-12-04
How can I confirm that my SIM card can support GTP-541M? 4 Troubleshooting 2020-12-02
How to confirm my SIM card can support GTP-500M? 3 Troubleshooting 2020-07-31
Please refer to the link below:

How to confirm my SIM card can support GTP-500M?
RTU Function - How do I change the Timeout parameter of Modbus Devices? 6 Product Functionality 2020-07-31
RTU Function - The Peripheral Device Status Error Code. 4 Product Functionality 2020-07-31
SMS Function - I wrote in the Hyperterminal +++hello and pressed enter many times, but the phone could not receive the same number of SMS. why it doesn't work and why sometimes it does work? 0 Troubleshooting 2020-07-31
SMS Function - Forgot password. 1 Troubleshooting 2020-07-31
Please refer to the link below:

SMS Function - Forgot password.
SMS Function - What is DTMF? 0 Product Functionality 2020-07-31
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SMS Function - What is DTMF?
How to convert 2 bytes Hex value into a decimal reading for either a more meaningful 4 ~ 20mA? 0 Troubleshooting 2020-03-27