Zyxel IES-1000 EE [31/368] Comfort noise generation

Zyxel IES-1000 EE [31/368] Comfort noise generation
Chapter 1 Introducing the VOP
VOP1224-61 User’s Guide
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Echo Cancellation
The device supports G.168, an ITU-T standard for eliminating the echo caused by
the sound of your voice reverberating in the telephone receiver while you talk.
Voice Activity Detection
Voice Activity Detection (VAD) reduces the bandwidth that a call uses by not
transmitting when you are not speaking.
Comfort Noise Generation
Your device generates background noise to fill moments of silence when the other
device in a call stops transmitting because the other party is not speaking (as total
silence could easily be mistaken for a lost connection).
Dynamic Jitter Buffer
The built-in adaptive buffer helps to smooth out the variations in delay (jitter) for
voice traffic. This helps ensure good voice quality for your conversations.

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