Data Sheet

Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.09 94 2015-08-03
OK
Response
+CSQ: <rssi>,<ber>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution Command returns received signal strength indication <rssi>
and channel bit error rate <ber> from the ME. Test Command returns
values supported by the TA.
Execution
Command
AT+CSQ
Parameters
<rssi>
0 -115 dBm or less
1 -111 dBm
2...30 -110... -54 dBm
31 -52 dBm or greater
99 not known or not detectable
<ber> (in percent):
0...7 As RXQUAL values in the table in GSM 05.08 [20]
subclause 7.2.4
99 Not known or not detectable
Parameter Saving
Mode
NO_SAVE
Max Response
Time
-
Reference
3GPP TS 27.007
[13]
Note
3.2.36 AT+VTD Tone Duration
AT+VTD Tone Duration
Response
+VTD: (list of supported <n>s)
OK
Test Command
AT+VTD=?
Parameters
See Write Command
Response
+VTD: <n>
OK
Read Command
AT+VTD?
Parameters