Multi-Tech Systems MVP400 - Manual (Page 23)

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Configuring the MultiVOIP
will not transmit voice packets when silence is detected,
thereby reducing the amount of network bandwidth that is
being used by the voice channel.
The Echo Cancellation check box defines whether echo
cancellation is enabled for this voice channel. If echo
cancellation is enabled, the MultiVOIP 400/800 will remove
echo which improves the quality of sound.
The Forward Error Correction (FEC) check box defines
whether forward error correction is enabled (checked) for
this voice channel. The FEC feature allows some of the
voice packets that were corrupted (or lost) to be
recovered. FEC adds an additional 50% overhead to the
total network bandwidth consumed by the voice channel.
Note: After configuring a given channel, you can copy that
channel’s configuration by clicking Copy. Everything on
the Voice/Fax tab will be copied to the other channel.
21. The Billing/Misc tab displays the parameters for auto call,
automatic disconnection, billing options, and dynamic jitter
buffer.