Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  113  2015-08-03 
ERROR 
If error is related to ME functionality: 
+CMS ERROR:<err> 
Parameters 
<index> Integer type; value in the range of location numbers supported by 
the associated memory 
<delflag> 0 Delete the message specified in <index> 
1 Delete all read messages from preferred message storage, 
leaving unread messages and stored mobile originated 
messages (whether sent or not) untouched 
2 Delete all read messages from preferred message storage 
and sent mobile originated messages, leaving unread 
messages and unsent mobile originated messages 
untouched 
3 Delete all read messages from preferred message storage, 
sent and unsent mobile originated messages leaving 
unread messages untouched 
4 Delete all messages from preferred message storage 
including unread messages 
Parameter Saving 
Mode 
NO_SAVE 
Max Response 
Time 
5s(delete 1 message) 
25s(delete 50 messages) 
25s(delete 150 messages) 
Reference 
3GPP TS 27.005 
Note 
4.2.2 AT+CMGF Select SMS Message Format 
AT+CMGF Select SMS Message Format 
Response 
+CMGF: (list of supported <mode>s) 
OK 
Test Command 
AT+CMGF=? 
Parameter 
See Write Command 
Response 
+CMGF: <mode> 
OK 
Read Command 
AT+CMGF? 
Parameter 
See Write Command 
Write Command  Response 










