Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  342  2015-08-03 
Mode 
Max Response Time - 
Reference  Note 
  TTS play channel setting take no effect in call. TTS play channel 
depend on CHFA when in call. 
  The default value of parameter <channel> is different among 
SIM800 series projects, please refer to chapter 21 for details. 
18.2.3 AT+CTTSRING Enable/Disable TTS Play During Incoming Call Ring 
AT+CTTSRING Enable/Disable TTS Play During Incoming Call Ring 
Response 
+CTTSRING: (0,1) 
OK 
Test Command 
AT+CTTSRING=?
Parameters 
See Write Command 
Response 
+CTTSRING: <mode> 
OK 
Read Command 
AT+CTTSRING? 
Parameters 
See Write Command 
Response 
OK  
If error is related to MS functionality, response: 
+CME ERROR: <err> 
Write Command 
AT+CTTSRING=<
mode> 
Parameters 
<mode>  enable/disable TTS play during incoming call ring 
0 diable TTS play during incoming call ring   
1  enable TTS play during incoming call ring 
Parameter Saving 
Mode 
NO_SAVE 
Max Response Time - 
Reference  Note 
If <mode> is set to 1, it is up to the customer to stop TTS play before 
accept the call 
Note: Part of the project supported TTS function, please refer to chapter 21 for details. 










