Readjust the volume until the
squeal is gone.
• The telephone used with the
MHA100 volume is set too high.
Readjust the volume until the
squeal is gone.
• Your headset may not be seated
snugly in the ear. If this problem
persists, try a different style of
headset that fits better with your
ear structure, where the micro -
phone and the speaker are not
located next to each other right by
the ear lobe.
• Move the phone, specifically the
antenna, away from the unit.
Part 15 of FCC Rules Information
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference that
may cause undesired operation.
Your equipment has been tested and
found to comply with the limits of a Class
B digital device, pursuant to Part 15 of
FCC rules. These limits are designed to