Chapter 5 – Call Control Commands

Microphone Mute Control +CMUT

Description: This command is used to mute 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:

Command syntax: AT+CMUT=<mode>

 

 

Command

Possible Responses

 

AT+CMUT=?

+CMUT : (0-1)

 

 

OK

 

Note: Test command

Note: Enable / disable mute

 

AT+CMUT?

+CMUT : 0

 

 

OK

 

Note: Ask for current value

Note: Current value is OFF

 

AT+CMUT=1

OK

 

Note: Mute ON (call active)

Note: Command valid

 

AT+CMUT?

+CMUT : 1

 

 

OK

 

Note: Ask for current value

Note: Mute is active (call active)

 

AT+CMUT=0

+CME ERROR: 3

 

Note: Mute OFF (call not active)

Note: Command not valid

Speaker & Microphone Selection +SPEAKER

Description: This command is used to select the speaker and the microphone set.

Values:

<ActiveSpkMic >

 

0: HEADSET

 

1: HANDSET

Syntax: Command syntax: AT+SPEAKER=<ActiveSpkMic>

Command

Possible Responses

 

 

AT+SPEAKER=1

OK

Note: Speaker ONE and Micro ONE

Note: Command valid

 

 

AT+SPEAKER?

+SPEAKER: 1

 

OK

 

Note: Speaker ONE and Micro ONE are active.

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C

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Multi-Tech Systems CDMA Wireless Modem manual Microphone Mute Control +CMUT, Speaker & Microphone Selection +SPEAKER