Teleorigin RB600, Руководство пользователя

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8. Troubleshooting
8.1 No connection/communication with the modem
If there is no communication with the modem following these steps:

Check all external connections on the modem (RS-232 or USB, Power supply)

Verify if power supply is correct (see Power supply )

Check if COM port is correctly parametrized

Check if the program used for communication works properly and if there is no
other program interfering. If yes, close the interfering program.
8.2 Receiving an ERROR message
The modem answers ERROR on AT command in following cases:

The syntax of typed AT command is incorrect – check the command syntax in [1]

The parameters of typed AT command are incorrect – type AT+CMEE=1 to enable
an accurate description of the error that occurred. The response will now be in this
format:
ERROR
+CME ERROR: <err>
where <err> is a description of the error that has occurred

Refer to [1] for further details about occurred error
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