Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  43  2015-08-03 
remain connected in absence of data carrier. If the data carrier is once more 
detected before disconnecting, the TA remains connected. 
OK 
ERROR 
Parameters 
<n> 1-15-254 Number of tenths seconds of delay 
Parameter Saving 
Mode 
AT&W_SAVE 
Max Response 
Time 
- 
Reference 
V.25ter 
Note 
2.2.24 ATT    Select Tone Dialing 
ATT Select Tone Dialing 
Execution 
Command 
ATT 
Response 
OK 
Parameter Saving 
Mode 
AUTO_SAVE 
Max Response 
Time 
- 
Reference 
V.25ter 
Note 
2.2.25 ATV TA Response Format 
ATV TA Response Format 
Response 
This parameter setting determines the contents of the header and trailer 
transmitted with result codes and information responses. 
 When <value>=0 
0 
 When <value>=1 
OK 
Execution 
Command 
ATV<value> 
Parameters 
<value> 0 Information response: <text><CR><LF> 
   Short result code format: <numeric code><CR>   
1 Information response: <CR><LF><text><CR><LF> 
Long result code format: <CR><LF><verbose code> 
<CR><LF> 










