Sony Ericsson GM47 - Manual (Page 150)

GM47/GM48 INTEGRATOR’S MANUAL
150
LZT 123 7263 R1C
4.17 AT*EXVC Ericsson Set External Volume Control
Used to set or query whether an external accessory such as the vehicle
handsfree controls the audio volume.
By default, the 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
setting returns to default.
Description Command Possible Responses
Sets the maximum
volume level on the
audio lines
AT*EXVC=
volume>
• +CME ERROR:
• OK
• ERROR
Show the current
setting
AT*EXVC? • *EXVC:
volume>
• +CME ERROR:
• OK
• ERROR
Show if the command
is supported
AT*EXVC=? • *EXVC: (list of
supported
volume>s)
• +CME ERROR:
• OK
• ERROR
volume>
Description
0 The phone MMI controls audio volume over AFMS
1 Audio volume over AFMS is output at maximum level that
is no clipping occurs. An external accessory such as a
vehicle kit controls the actual volume level heard by the
user