PLANET VIP-255PT - Manual (Page 44)

2. Set the following parameters shown in the table.
Field Name Description
Echo canceller Defines whether to enable the echo canceller.
VAD
Voice activity detection (VAD), also known as speech activity detection
or speech detection, is a technique used in speech processing in
which the presence or absence of human speech is detected.
CNG
A comfort noise generator (CNG) is a program used to generate
background noise for voice communications during periods of silence
that occur during the course of conversation.
JITTER BUFFER
It is a shared data area where voice packets can be collected, stored,
and sent to the voice processor in evenly.
Type To choose the type of JITTER BUFFER, adaptive or Fixed.
Delay To set the Min Delay, Max Delay and Normal Delay parameter.
3. Press Confirm button to save the changes, Cancel to cancel the changes.
Ring
Users can group your contacts, and then set the ringing tone for each group.
To edit the Ring option via Web interface:
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1. Choose Phone->Ring.