400HD Series IP Phones
Administrator's Manual 158 Document #: LTRT-11950
Parameter Description
Fast Adaptation Gain Slope The rate of changes in Automatic Gain
Control gain during Fast Adaptation Mode.
Default: 19 (10dB/sec). 0.25-70.00
10dB/sec.
Fast Adaptation Duration (0 - 65535) The duration of the Fast Adaptation Mode,
in msec. Default: 1500 msec.
Slow Adaptation Gain Slope The rate of changes in Automatic Gain
Control gain during Slow Adaptation
Mode. Default: 19 (10dB/sec). 0.25-70.00
10dB/sec.
Enable Automatic Gain Control
[voip/audio/gain/automatic_gain_control/enabled]
Enables the AGC. AGC automatically
adjusts the phone's voice volume to
compensate for weak or loud signals.
[0] Disable (default)
[1] Enable
Automatic Gain Control Direction
[voip/audio/gain/automatic_gain_control/direction]
Determines whether AGC is located
before the encoder input (CTL_LOCAL) or
after the decoder output (CTL_REMOTE).
[CTL_REMOTE] For Remote User
(default) - AGC is located after the
Decoder output
[CTL_LOCAL] For Local User - AGC
is located before the Encoder input
Target Energy
[voip/audio/gain/automatic_gain_control/target_energy]
The required output energy (in dBm) of the
AGC.
The valid range is -31 to 0 (dB). The
default value is -19.
[voip/audio/gain/automatic_gain_control/NB/handset_ta
rget_energy]
Default = -16
[voip/audio/gain/automatic_gain_control/NB/headset_ta
rget_energy]
The valid range is -31 to 0
Default = -16
[voip/audio/gain/automatic_gain_control/WB/handset_t
arget_energy]
Default = -16
[voip/audio/gain/automatic_gain_control/WB/headset_t
arget_energy]
The valid range is -31 to 0
Default = -16
[voip/audio/gain/automatic_gain_control/fast_adap_gai
n_slope]
Default = 3_50
Valid values:
[REBOOT], [0_25], [0_50], [0_75],
[1_00], [1_25], [1_50], [1_75], [2_00],
[2_50], [3_00], [3_50], [4_00], [4_50],
[5_00], [5_50], [6_00], [7_00], [8_00],
[9_00], [10_00], [11_00], [12_00],
[13_00], [14_00], [15_00], [20_00],
[25_00], [30_00], [35_00], [40_00],
[50_00], [70_00]
[voip/audio/gain/automatic_gain_control/max_gain]
Default = 15
The valid range is 0 to 18