User guide

MultiVOIP Quick Start Guide
20
17. The Fax group enables you to select the maximum baud
rate for faxes and adjust the fax volume. If you do not plan
to send or receive faxes on a given voice/fax channel, you
can disable faxes in the Fax group.
18. The Miscellaneous group lets you set voice/fax advanced
features by clicking (checking) Silence Compression,
Echo Cancellation, or Forward Error Correction.
The Silence Compression option defines whether silence
compression is enabled for the voice channel. If silence
compression is enabled, the MVP120 will not transmit
voice packets when silence is detected, thereby reducing
the amount of network bandwidth used by the voice
channel.
The Echo Cancellation option defines whether echo
cancellation is enabled for the voice channel. If echo
cancellation is enabled, the MVP120 will remove echo
which improves the quality of sound.
The Forward Error Correction (FEC) option defines
whether forward error correction is selected for the 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.