Data Sheet
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  203  2015-08-03 
Parameters 
See Write Command 
Response 
OK 
ERROR 
Write Command 
AT+SNDLEVEL=
<mode>,<soundle
vel> 
Parameters 
<mode>  0    adjust the sound level of STTONE and SIMTONE 
1 adjust the sound level of CLDTMF 
<soundlevel>    0-100  Integer type value with manufacturer specific 
range (smallest value represents the lowest sound level). 
Reference  Note 
6.2.74 AT+ECHARGE Charge Control 
AT+ECHARGE Charge Control 
Response 
+ECHARGE: (0-1) 
OK 
Test Command 
AT+ECHARGE=
? 
Parameters 
See Write Command 
Response 
+ECHARGE: <n> 
OK 
Read Command 
AT+ECHARGE? 
Parameters 
See Write Command 
Response 
OK 
ERROR 
Write Command 
AT+ECHARGE=
<n> 
Parameters 
<n>  
0 Disable charge 
1 Enable charge 
Parameter Saving 
Mode 
AT&W_SAVE 
Reference  Note 










