Readjust the volume until the squeal is gone.
The telephone used with the MHAl00 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 ccuse 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