Data Sheet
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  334  2015-08-03 
Parameters 
<mode> disable or enable DTMF detection control 
0 disable 
1 enable 
<interval> the min interval between two same key URC. The range is 
0-10000, the default value is 0. unit is ms. 
<reportMode> URC report mode 
0 key value reported only 
1 key value and last time are reported, the last time is in ms 
<key> keytone detected, 1-9,*,#,A,B,C,D.if <ssdet> is 1,Single frequency 
sound 1400 and 2300 is supported too, when single frequency 1400HZ 
sound or 2300HZ sound is detected, +DTMF:1400 or +DTMF:2300 is 
reported 
<last time> duration of keytone playing. unit is ms. 
<ssdet> single frequency sound detect function on off 
 0 switch off 
1 switch on 
Parameter Saving 
Mode 
AT&W_SAVE 
Max Response 
Time 
- 
Reference 
Note 
The parameters <interval> ,<reportMode> and <ssdet> can not power off 
save 










