![background image](http://html2.mh-extra.com/html/yealink/sip-t54s/sip-t54s_administrators-manual_3255771907.webp)
Configuring Audio Features
881
Automatic Gain Control (AGC)
Automatic Gain Control (AGC) is applicable to hands-free operation and is used to keep audio
output at nearly a constant level by adjusting the gain of signals in certain circumstances. This
increases the effective user-phone radius and helps with the intelligibility of soft-talkers.
Voice Activity Detection (VAD)
Voice Activity Detection (VAD) is used in speech processing to detect the presence or absence
of human speech. When detecting period of “silence”, VAD replaces that 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. VAD can avoid
unnecessary coding or transmission of silence packets in VoIP applications, saving on
computation and network bandwidth.
Procedure
VAD can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure VAD.
Parameter:
voice.vad
Web User Interface
Configure VAD.
Navigate to
:
http://<phoneIPAddress>/servlet?p
=settings-voice&q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
voice.vad
0 or 1
0
Description:
Enables or disables the VAD (Voice Activity Detection) feature on the IP phone.
0
-Disabled
1
-Enabled
Web User Interface
:
Settings->Voice->Echo Cancellation->VAD
Phone User Interface:
None
Содержание SIP-T54S
Страница 1: ...63...
Страница 26: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series CP860 CP920 IP Phones xxvi...
Страница 51: ...Getting Started 25 For SIP T46G S Desk Mount Method Wall Mount Method Optional...
Страница 53: ...Getting Started 27 For SIP T42S T41S Desk Mount Method Wall Mount Method Optional...
Страница 55: ...Getting Started 29 For SIP T23P T23G Desk Mount Method Wall Mount Method Optional...
Страница 70: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series CP860 CP920 IP Phones 44...
Страница 194: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series CP860 CP920 IP Phones 168...
Страница 1034: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series CP860 CP920 IP Phones 1008...