Configuring Audio Features
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Navigate to:
http://<phoneIPAddress>/servlet?p
=settings-voice&q=load
Details of the Configuration Parameter:
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
To configure VAD via web user interface:
1. Click on Settings->Voice.
2. Select the desired value from the pull-down list of VAD.
3. Click Confirm to accept the change.
Comfort Noise Generation (CNG) is used to generate 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
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