User guide

Enterprise IP Phone Trouble Shooting
 Ring Back
 Busy
 Congestion
 Call Waiting
 Dial Recall
 Record
 Info
 Stutter
 Message
 Auto Answer
To edit the tone filed via Web interface:
1) Choose Phone->Tones.
2) Enter the frequency and time period(in ms) as the following format:
Frequency /Time Period (for example 400/200).
3) Press Confirm button to save the changes, Cancel to cancel the change.
Note:
1. Please contact your system administrator for more information about the
frequency and time period parameters. You can enter up to 8 groups for each tone.
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.