Table 9-6: Voice And Fax Tab Parameters Description - AudioCodes MP-26 series User Manual

User's Manual
3. Configure the parameters, as required. For a description of the parameters displayed
on this screen, see
4. Click OK to save your settings.
Parameter
Gain Control
Enable Automatic Gain
Control
Automatic Gain Control
Direction
Target Energy
Jitter Buffer
Minimum Delay
Optimization Factor
Silence Compression
Enable Silence
Compression
Enable G.711/G.726
Comfort Noise
Echo Cancellation
Enable Echo
Cancellation
Fax and Modem Settings
Fax Transport Mode
Version 4.4.0
Table 9-6.

Table 9-6: Voice and Fax Tab Parameters Description

Enables the Automatic Gain Control (AGC) mechanism. The AGC
mechanism adjusts the level of the received signal to maintain a steady
(configurable) volume level.
Defines the AGC direction (local or remote user).
Note: This parameter appears only if the 'Enable Automatic Gain Control'
check box is selected.
Defines the signal energy value (in dBm) that the AGC attempts to attain.
The range is 0 to -63 dBm. The default value is -19 dBm.
Note: This parameter appears only if the 'Enable Automatic Gain Control'
check box is selected.
Defines the initial and minimal delay of the adaptive jitter buffer
mechanism, which compensates for network problems. The value should
be set according to the expected average jitter in the network (in
milliseconds). The default is 35 msec.
Defines the adaptation rate of the jitter buffer mechanism. Higher values
cause the jitter buffer to respond faster to increased network jitter. The
default is 7.
Enables silence compression, which reduces the network bandwidth
consumption. The default is disabled.
Enables the Comfort Noise generation feature. When enabled and silence
is detected, the device transmits a series of parameters called Silence
Information Descriptor (SID), which are used to reproduce the local
background noise at the remote (receiving) side.
Note: This parameter appears only if the 'Enable Silence Compression'
check box is selected.
Enables (default) echo cancellation (disabling echo cancellation should be
done for testing purposes only).
Selects the way fax calls are handled:

Transparent = Fax is transferred in-band (like a voice call) - can be
used if the codec is G.711

T.38 Relay = Fax is relayed to the remote side according to the
T.38 standard

Voice Band Data = Switch to G.711 via SIP messaging

Bypass = An automatic switch to AudioCodes' proprietary payload
type (102, 103).
9. Configuring VoIP Parameters
Description
105 MP26x/MP27x