Toa N-8000 Series Ver.1.41 - Manual (Page 172)

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Chapter 5: SYSTEM SETTINGS BY SOFTWARE Chapter 5: SYSTEM SETTINGS BY SOFTWARE
Exchange: Network Settings
Sampling frequency Delay time Frequency band to be used
High Quality Sound 16 kHz 0.08 second 130 kbps
Transmission Mode
Standard Mode
8 kHz 0.08 second 98 kbps
Band Width Saving 8 kHz 0.32 second 49.5 kbps
Transmission Mode
(9) Available bit rate
Set the capacity (or a usable upper limit value) of the network line to which the Exchange is connected.
Setting this communication capacity prevents sound quality deterioration and longer time delays caused
by excess conversation and/or paging communications traffic.
(10) Broadcast Spec
Select the voice transmission mode that is appropriate for the usable frequency band.
• High Quality Sound Transmission Mode
Transmits voices at high sound quality with short time delay. Use this mode as the normal default
mode.
• Standard Mode
Transmits voice audio with a short time delay. In this mode, the sound quality is reduced, but the delay
time is identical to that in high quality mode, allowing a narrower frequency band to be used. Use this
mode when exchanges are connected via an ISDN line (128 kbps).
• Band Width Saving Transmission Mode
Voice transmission uses a very narrow frequency band, but with lesser quality sound and longer time
delay. Use this mode when exchanges are connected via an Analog line (56 kbps).