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Jason RayAug 2, 2025
What to do if I am receiving a 'No Carrier' message on my Robustel Modem?
- ZzpetersonAug 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.