Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  186  2015-08-03 
  White list phone numbers are suitable to call and SMS function. 
6.2.53 AT+CSDT Switch on or off Detecting SIM Card   
AT+CSDT Switch on or off Detecting SIM Card 
Response 
+CSDT: (0-1) 
OK 
Test Command 
AT+CSDT=? 
Parameters 
See Write Command 
Response 
+CSDT: <mode> 
OK 
Read Command 
AT+CSDT? 
Parameters 
See Write Command 
Response 
OK 
ERROR 
Write Command 
AT+CSDT=<mo
de> 
Parameters 
<mode> 
0 Switch off detecting SIM card 
1 Switch on detecting SIM card 
Parameter Saving 
Mode 
AT&W_SAVE 
Max Response 
Time 
- 
Reference Note 
  User should select 8-pin SIM card holder to implement SIM card 
detection function. 
  After plug out simcard, User should wait 2 seconds before plug in SIM 
card. 
6.2.54 AT+CSMINS SIM Inserted Status Reporting 
AT+CSMINS SIM Inserted Status Reporting 
Response 
+CSMINS: (list of supported <n>s) 
OK 
Test Command 
AT+CSMINS=? 
Parameter 










