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Codec Priority 1~9
G.723 Rate
ILBC Mode
Packet Length
Voice Active Detector
It is used in speech encoding software to determine if the voice being encoded is human speech or
background noise. There are three type of silence suppression: NO CNG, Only G.711 Annex II type, and
Codec Specific CN.
Echo Canceller
The echo canceller literally removes your voice from the returning audio stream without removing the
audio coming from your caller.
Line Echo Canceller Tail
Length
Acoustic Echo Canceller
Tail Length
Gain Control Level
You can adjust the FXO Tx/Rx Gain Control level, range from 0db to 30db. The "gain" means increase
in the power of electrical signal, measures by decibel.
Automatic Gain Control Tx / Rx Level：Automatic voice gain control for transmitting. Default setting is
in Disable mode.
The Codec is used to compress the voice signal into data packets. Each
Codec has different bandwidth requirement. There are 9 kinds of codec. To
determine the priority, selects one codec algorithm from the pull-down
menus individually
This defines the encoding rate for G723 Codec, default is 6.3Kbps Rate
RTP Payload length. Select a length from the pull-down menu, default
setting is 30 m-sec
RTP payload length. Selects a length from the pull-down menu, default
setting is 20 m-sec
Tail length for line echo cancellation. Default setting is in Disable mode
Tail length for acoustic echo cancellation. Default setting is in Disable
mode
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