Step 5c: Squelch
The Squelch screen measures the background noise in your environment and automatically
sets the microphone squelch so that the microphone is only active when you speak.
A proper squelch setting will improve performance; if the squelch is set too
low, background noise will be transmitted across your networking connection,
reducing the amount of bandwidth available for video and audio. To set the level,
click on the Start button and remain silent while the counter counts down from five to zero,
then click the Next button.
Next screen: Verify