Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 130 23.06.2010
Response
OK
ERROR
Write Command
AT+CFGRI=<st
atus>
Parameter
<status>
1 on
0 off
Reference Note
6.2.11 AT+CLTS Get Local Timestamp
AT+CLTS Get Local Timestamp
Response
+CLTS: the format of <timestamp>
OK
Test Command
AT+CLTS=?
Parameter
See Execution Command
Response
OK
ERROR
Execution
Command
AT+CLTS =
<mode>
Parameter
<mode>
0 disable
1 enable
Reference Note
z Support for this Command will be network dependant.
z Set AT+CLTS=1, it means you can receive network time updating
Then use AT+CCLK to show current time.
6.2.12 AT+CEXTHS External Headset Jack Control
AT+CEXTHS External Headset Jack Control
Response
+CEXTHS: (<mode>s)
OK
Test Command
AT+CEXTHS=?
Parameters
See Write Command
Read Command
AT+CEXTHS?
Response
+CEXTHS: <mode>,<headset attach>