What to do if I am receiving a 'No Carrier' message on my Robustel Modem?
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zpetersonAug 2, 2025
If you are receiving a 'No Carrier' message, several factors could be at play. First, make sure that the semicolon (;) is entered immediately after the phone number in the AT command, for example: ATD123456;. Also, verify if the SIM card is configured for data/fax calls, and if necessary, ask your network provider. Finally, confirm that the selected bearer type is supported by both the called party and the network. If unsuccessful, attempt to select the bearer type using the AT command: AT+CBST=0,0,3.
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Joel SantanaAug 13, 2025
How to fix Robustel GoRugged M1000 Modem's LED if it does not light up?
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Diane JacksonAug 13, 2025
If the modem’s LED does not light, verify that the modem is properly connected to a 9 to 36VDC power supply. Also, ensure that the power connector is fully and correctly inserted.
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Michael WilsonAug 21, 2025
What to do if there is no connection with Robustel GoRugged M1000 through serial link?
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Travis CrossAug 21, 2025
If you have no connection with the modem through a serial link, check that the serial cable has been connected properly. Ensure that the serial cable has been made by following the pin assignment. Check if your program has the proper settings. Also, check if another program is interfering with the communication program, such as a conflict on communication port access.