Sony Ericsson TT4031 (SE-GM29) 4.9 AT*EXVC Ericsson SET External Volume Control

1On, music mute indication result codes will be sent to the accessory

<resp> Description

0Music mute inactive

1Music mute active

4.9 AT*EXVC Ericsson SET External Volume Control

Description Command Possible Responses

Sets the maximum	AT*EXVC=<external
volume level on the	volume>
audio lines

Test if the command is AT*EXVC=? supported and show the

possible report settings

Read the current setting AT*EXVC?

•_ +CME ERROR: <err>

•_ OK

•_ ERROR

•_ *EXVC: (list of supported <external volume>s)

•_ +CME ERROR: <err>

•_ OK

•_ ERROR

•_ *EXVC: <external volume>

•_ +CME ERROR: <err>

•_ OK

•_ ERROR

Used to set or query whether an external accessory such as the vehicle handsfree controls the audio volume.

By default, the <external volume> is turned off, i.e. the volume over AFMS is controlled by the phone MMI.

The set command is effective only as long as the phone senses that it is connected to an external accessory that has issued the command. Once the phone and the accessory are disconnected the <external volume> setting returns to default.

	<external volume>	Description
	0	The phone MMI controls audio volume over AFMS
Owner’s Manual		Rev 1.0	Page 108 of 108