User's Manual

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silence efficiently with special packets that indicate
silenceisoccurring.Itcanfacilitatespeechprocessing,
and deactivate some processes during nonspeech
section of an audio session. It can avoid unnecessary
coding or transmission of silence packets in VoIP
applications, saving on computation and network
bandwidth.
z CNG(Comfort Noise Generation): Allow
 IP phone to
generate comfortable background noise for voice
communications during periods of silence in a
conversation.It is a part of the silence suppressionor
VADhandlingforVoIPtechnology.CNG,inconjunction
withVADalgorithms,quicklyrespondswhenperiodsof
silence occur and inserts artificial noise until voice
activity resumes. The insertion of artificial noise gives
theillusion of a constant transmissionstream,sothat
backgroundsoundisconsistentthroughoutthecalland
thelistenerdoesnotthinkthelinehasreleased.
MicVolume ToconfigureMicrophonevolumeforhandsetmode.
Automatical Generation
Control
R48Gwillautoadjustamplificationcircuitgainviasignal.
z Automatic Gain Control(Sendingside): Disabled by
default
z Automatic Gain Control(Receivingside): Disabled by
default
z AutomaticGainControlTarget:Rangefrom1to20dB.
3dBbydefault.
NetEQ Filter forgetting factor base: Range from 0~255. 250 by default.
