Motorola C290 Manuel d'utilisateur télécharger pdf (Page 55)

Hearing Aids

Hearing Aid Compatibility with Mobile Phones

Hearing Aids

A number of Motorola phones have been tested for hearing aid

compatibility. When some wireless phones are used with certain

hearing aids, users may detect a noise which can interfere with the

effectiveness of the hearing aid.

Some hearing aids are more “immune” than others to this

interference noise, and phones can also vary in the amount of

interference noise they may generate. ANSI standard C63.19 was

developed to provide a standardized means of measuring both

mobile phone and hearing aids to determine usability rating

categories for both.

Ratings have been developed for mobile phones to assist hearing aid

users find phones that may be compatible with their hearing aid. Not

all phones have been rated for compatibility with hearing aids.

Phones that have been rated have a label with the rating(s) located

on the box, and at www.motorola.com/iden.

These ratings are not guarantees of compatibility. Results will vary

depending on the user's hearing aid and individual type and degree

of hearing loss. If a hearing aid is particularly vulnerable to

interference, even a phone with a higher rating may still cause

unacceptable noise levels in the hearing aid Trying out the phone

with your hearing aid is the best way to evaluate it for your personal

needs.

“M” Rating:

Phones rated M3 or M4 meet FCC requirements for

hearing aid compatibility and are likely to generate less interference

to hearing aids than unrated phones. (M4 is the “better” or higher of

the two ratings.) On those models with an extendable antenna, this

rating is determined only with the antenna extended.

“T” Rating:

Phones rated T3 or T4 meet FCC requirements and are

likely to be more usable with a hearing aid's telecoil (“T Switch” or

“Telephone Switch”) than unrated phones. (T4 is the “better” or

higher of the two ratings.) On those models with a telecoil mode

setting, this rating is determined only with the phone so set. For

setting instructions, see “Features for the Hearing Impaired” in the

section entitled “Advanced Calling Features”. Note that not all

hearing aids have telecoils in them.

Hearing aids may also be measured for immunity to interference from

wireless phones and may have ratings similar to wireless phones.

Ask your hearing healthcare professional for the rating of your

hearing aid. Add the rating of your hearing aid and your phone to

determine the estimated usability:

• Any combined rating equal to or greater than six offers excellent

use.

• Any combined rating equal to five is considered normal use.

• Any combined rating equal to four is considered usable.

Thus, if you use an M3 phone with a M3 hearing aid you will have a

combined rating of six for “excellent use.” This methodology applies

equally for T ratings.

More information about hearing aid compatibility may be found at:

www.motorola.com/accessibility, www.fcc.gov, www.fda.gov, and

www.hearingloss.org/learn/cellphonetech.asp

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Motorola C290 Manuel d'utilisateur Page 55

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