User manual

7170
Advanced Setup Method
Advanced Setup Method
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Jitter Buffer Mode
Jitter Buffer helps eliminate jitter caused by transmission delays on
a VoIP call. As the jitter buffer receives the voice packets it adds
a small amount of delay to the packets so it appears they were all
received without delays.
NONE – Jitter Buffer is disabled
FIXED – Jitter Buffer Mode is fixed
ADAPTIVE – Jitter Buffer Mode will automatically adapt to the current
call.
SEQUENTIAL – Jitter Buffer Mode set to Sequential
Jitter Buffer Delay
Specifies the delay in milliseconds for the Jitter Buffer. Default/
recommended is 40ms.
Echo Canceller Delay
Echo cancellation is the process in removing echo from voice
communication over the VoIP. It improves the quality of the call and
conserves bandwidth.
Default/recommended setting = 32 milliseconds
VAD
Voice Activation Detection. VAD is designed to conserve bandwidth
by halting transmission of voice packets until it has detected a noise
either by voice or outside noise. The downside to this is it may miss
some packets due to a slight delay in the transmission of packets.
Disable this if you are experiencing issues with phone system menus,
Faxing over IP etc.
Default/recommended = Enabled
CNG
Comfort Noise Generation. As VoIP is digital, there is no background
interference like there is on the standard analogue PSTN (Public
Switched Telephone Network). This option will generate slight
noises in the background to make the digital call sound more like an
Telephony Tone Country Setting: Select the country.
Voice Codec Configuration: Set the voice codecs.
Available Codecs: List of available codecs.
Selected Codecs: List of selected codecs, move the preferred codec
to the top of the list with up and down buttons to the right. The codec
at the top of the list will be used when it can.
Port Advanced Setting
Configure advanced VoIP settings on this page then click “SAVE
SETTINGS”.
Volume Gain Control
Use this option to adjust the volume of calls made through VoIP:
OFF – Standard volume level 0dB.
FIXED – Set the volume to amplify or attenuate at a fixed dB.
ADAPTIVE – The volume will automatically amplify or attenuate
according to the current call.