Use this option to define the Silence Threshold for the selected profile. Sound levels below the
threshold are interpreted as silence. Levels above the threshold are interpreted as speech (audio). If the
Silence Threshold is too high, the beginning of words or portions of speech may be cut off. If it is too
low, background noise could be considered as speech. This would tend to minimize any bandwidth savings
achieved when Silence Compression is enabled in
1812-(01-06): Silence Compression [System: VoIP: Profile (1-4): Codecs (1812): Silence Compression].