A SERVICE OF

logo

10
aDJustING tHe VOLuMe FOr CaLLs
To adjust your listening
volume, rotate the Listening
Volume Thumbwheel from 1
(quietest) to 9 (loudest).
To adjust your speaking
volume, remove the Cover
from the Vista M22.
1. Use the Plastic
Screwdriver to adjust the
Speaking Volume Control.
Turn the control
clockwise to make your
voice louder.
Turn the control counter-
clockwise to make your
voice softer.
2. Replace the Cover and
Plastic Screwdriver.