Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  52  2015-08-03 
information text which permit the user to identify the individual ME device.
<sn> 
OK 
AT+GSN 
Parameters 
<sn> IMEI of the telephone(International Mobile station Equipment 
Identity) 
Parameter Saving 
Mode 
NO_SAVE 
Max Response 
Time 
- 
Reference 
V.25ter 
Note 
The serial number (IMEI) is varied by individual ME device. 
2.2.39 AT+ICF Set TE-TA Control Character Framing 
AT+ICF Set TE-TA Control Character Framing 
Response 
+ICF: (list of supported <format>s),(list of supported <parity>s) 
OK 
Test Command 
AT+ICF=? 
Parameters 
See Write Command 
Response 
+ICF: <format>,<parity> 
OK 
Read Command 
AT+ICF? 
Parameters 
See Write Command 
Response 
This parameter setting determines the serial interface character framing 
format and parity received by TA from TE. 
OK 
Write Command 
AT+ICF=<forma
t>[,<parity>] 
Parameters 
<format> 1 8 data 0 parity 2 stop 
    2 8 data 1 parity 1 stop 
   3  8 data 0 parity 1 stop 
    4 7 data 0 parity 2 stop 
    5 7 data 1 parity 1 stop 
    6 7 data 0 parity 1 stop 
<parity>   0 odd 
    1 even 










