Sony Ericsson TT4031 (SE-GM29) - Manual (Page 108)

Owner’s Manual Rev 1.0 Page 108 of 108
1 On, music mute indication result codes will be sent to the
accessory
<resp> Description
0 Music mute inactive
1 Music mute active
4.9 AT*EXVC Ericsson SET External Volume Control
Description Command Possible Responses
Sets the maximum
volume level on the
audio lines
AT*EXVC=<external
volume>
•_ +CME ERROR: <err>
•_ OK
•_ ERROR
Test if the command is
supported and show the
possible report settings
AT*EXVC=?
•_ *EXVC: (list of
supported <external
volume>s)
•_ +CME ERROR: <err>
•_ OK
•_ ERROR
Read the current setting AT*EXVC?
•_ *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