Data Sheet

SIM900 AT Commands Set
SIM900R01_ATC_V1.00 95 15.01.2010
Parameter
see Write Command
Response
+CCWE: <mode>
OK
+CME ERROR: <err>
Read Command
AT+CCWE?
Parameter
See Write Command
Response
OK
+CME ERROR: <err>
Write Command
AT+CCWE=[<m
ode>]
Parameter
<mode> 0 Disable call meter warning event
1 Enable call meter warning event
Unsolicited result codes supported:
+CCWV Shortly before the ACM (Accumulated Call Meter)
maximum
value is reached, an unsolicited result code +CCWV will
be
Approximately when 5 seconds call time remains. It is
also issued when starting a call if less than 5 s call time
remains.
Parameters
Reference
GSM 07.07 [13]
Note
z GSM 07.07 specifies 30 seconds, so SIMCOM deviates from the
specification.
3.2.56 AT+CBC Battery Charge
AT+CBC Battery Charge
Response
+CBC: (list of supported < bcs >s),(list of supported < bcl >s),(voltage)
OK
Test Command
AT+CBC=?
Parameters
see Execution Command