Test command

The test command lists supported signal quality values

Response syntax:

+CSQ: (list of supported <rssi>s,(list of supported <ber>s)

The test command parameters and their defined values are the following:

<rssi>, <ber>
99 – Not detectable

The following command example lists the supported signal quality values:

AT+CSQ=?
+CSQ: (99),(99)
OK