C78 User Manual
21
Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Use Your Phone with a Hearing Aid Device
Your C78 device is compliant with the FCC Hearing Aid Compatibility (HAC) requirements.
When some wireless phones are used near some hearing devices (hearing aids
and cochlear implants), users may detect a buzzing, humming, or whining noise.
Some hearing devices are more immune than others to this interference noise,
and phones also vary in the amount of interference they generate. The wireless
telephone industry has developed ratings for some of their mobile phones to assist
hearing-device users in finding phones that may be compatible with their hearing
devices. Not all phones have been rated. Phones that have been rated have a label
on the box. Your C78 has been tested for hearing aid device compatibility and has an
M[4] and/or T[4] rating.
These ratings are not guarantees. Results will vary, depending on the level of
immunity of your hearing device and the degree of your hearing loss. If your hearing
device happens to be vulnerable to interference, you may not be able to use a rated
phone successfully. Trying out the phone with your hearing device is the best way to
evaluate it for your personal needs.