TIPTEL 28XS, Manual

Page: 30 / 34

Simply IP Phone Trouble Shooting
- 26 -
To assign the key as DTMF:
1) Choose Phone->DSS Key, choose one of the key you want to make the assignment, there is
a pull-down menu in the Type field, choose DTMF from the list.
2)
In the “Expansion” filed, enter the specific number.
3) Press Confirm button to save the changes.
Tone Settings
You can define the frequency and time period of all the following tones

Dial

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, or Cancel to cancel the changes.
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.