Multi-Tech Systems GPRS (MTMMC-G) 사용자 설명서

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Chapter 5 – Call Control Commands 
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 
26 
 
Microphone Mute Control   +CMUT 
Description: 
This command mutes the microphone input on the product (for the active microphone set with the 
+SPEAKER command). This command is only allowed during a call.  
Values: <mode> 
 
 0 
microphone mute off (default value). 
 1 
microphone mute on. 
Syntax:   
AT+CMUT=<mode> 
Command 
Possible responses
AT+CMUT=? 
 
Note: Test command 
+CMUT: (0,1) 
OK 
Note: Enable / disable mute 
AT+CMUT? 
 
Note: Ask for current value 
+CMUT: 0 
OK 
Note: Current value is OFF 
AT+CMUT=1 
Note: Mute ON (call active) 
OK 
Note: Command valid 
AT+CMUT? 
 
Note: Ask for current value 
+CMUT: 1 
OK 
Note: Mute is active (call active) 
AT+CMUT=0 
Note: Mute OFF (call not active) 
+CME ERROR:3 
Note: Command not valid 
 
 
Speaker & Microphone Selection   +SPEAKER 
Description: This 
specific command selects the speaker and the microphone set.  
Values: <ActiveSpkMic> 
 
 0 
Speaker One, Micro One 
 1 
Speaker Two, Micro Two 
Syntax:     
AT+SPEAKER=<ActiveSpkMic> 
Command 
Possible responses
AT+SPEAKER=0 
Note: Speaker ONE and Micro ONE 
OK 
Note: Command valid 
AT+SPEAKER? 
 
 
+SPEAKER: 0 
OK 
Note: Speaker ONE and Micro ONE are active 
AT+SPEAKER=? +SPEAKER: 
(0,1) 
OK