User guide

Developers guidelines | AT commands
84 June 2010
AT+VGS Gain of speaker
AT+BRSF Bluetooth retrieve supported
Description: Command issued by the HF to report its current speaker gain level setting
to the phone. <gain> is a decimal numeric constant, relating to a particular
(implementation dependent) volume level controlled by the HF. This com-
mand does not change the speaker gain of the phone, it simply indicates
the current value of the speaker gain in the HF.
Note: This command returns an error if the request is not made from a
bluetooth handsfree device.
This command activates the result code +VGS
Execution
command: AT+VGS=<gain>
Test command: AT+VGS=? Shows if the command is supported.
Test command
response: +VGS: (list of supported <gain>s)
Parameter:
<gain>:
<gain> Description
0–15 0 – Minimum gain
15 – Maximum gain
Description: Notifies the ME of the supported features available in the HF and requests
information about the supported features in the ME. The supported fea-
tures are represented by a decimal value.
<HF supported bitmap> is a 32 bit unsigned integer representing a bitmap
of the supported features in the HF according to table 1. The unused bits
are initialised to zero.
<ME supported bitmap> is a 32 bit unsigned integer representing a bitmap
of the supported features in the ME according to table 2. The unused bits
are initialised to zero.
Execution
command: AT+BRSF=<HF supported features bitmap>
Execution command
response: +BRSF: <ME supported features bitmap>
Test command: AT+BRSF=? Shows if the command is supported
Parameter:
<HF supported
features bitmap>
bit Description
0 EC and/or NR function
1 Call waiting and 3-way calling
2 CLI presentation capability