Karel IP111 User Manual - page 54
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2. If the frequency is set as 0, it means silence.
Voice
To edit the Voice filed via Web interface:
1）Choose Phone->Voice.
2) Set the following parameters shown in the table.
Parameter
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:
1) Choose Phone->Ring.
2) Internal Ringer Text: To set group name. For example, family.
3) Internal Ringer File: To choose a special ring tone for the group.