Справочник Пользователя для Nextel comm I465

Скачать
Страница из 174
Imp
o
rtan
t S
a
fet
In
fo
rm
atio
n
147
Using Your Phone With a Hearing 
Aid Device
A number of Nextel phones have been tested for hearing aid 
device compatibility. When some wireless phones are used 
with certain hearing devices (including hearing aids and 
cochlear implants), users may detect a noise which can 
interfere with the effectiveness of the hearing device.
Some hearing devices are more immune than others to this 
interference noise, and phones 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 wireless phone and hearing devices to determine usability 
rating categories for both.
Ratings have been developed for mobile phones to assist 
hearing device users find phones that may be compatible with 
their hearing device. Not all phones have been rated for 
compatibility with hearing devices. Phones that have been 
rated have a label with the rating(s) located on the box, and are 
listed at www.motorola.com/accessibility.
These ratings are not guarantees. Results will vary depending 
on the user’s hearing device and individual type and degree of 
hearing loss. If a hearing device is particularly vulnerable to 
interference noise; even a phone with a higher rating may still 
cause unacceptable noise levels in the hearing device. Trying 
out the phone with your hearing device is the best way to 
evaluate it for your personal needs.
M-Ratings:
 Phones rated M3 or M4 meet FCC requirements for 
hearing aid compatibility and are likely to generate less 
interference to hearing devices than unrated phones. (M4 is the 
better/higher of the two ratings.)
T-Ratings:
 Phones rated T3 or T4 meet FCC requirements and 
are likely to be more usable with a hearing device’s telecoil (“T 
Switch”or “Telephone Switch”) than unrated phones. (T4 is the 
better/higher of the two ratings. Note that not all hearing 
devices have telecoils in them.)
Hearing aid devices may also be measured for immunity to 
interference noise from wireless phones and should have 
ratings similar to phones. Ask your hearing health care 
professional for the rating of your hearing aid. Add the rating of 
your hearing aid and your phone to determine probable 
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 pair an M3 hearing aid with an M3 phone, you will 
have a combined rating of six for “excellent use.”This is 
synonymous for T ratings.
Nextel further suggests you experiment with multiple phones 
(even those not labeled M3/T3 or M4/T4) while in the store to 
find the one that works best with your hearing aid device. 
Should you experience interference or find the quality of 
service unsatisfactory after purchasing your phone, promptly 
return it to the store within 30 days of purchase. With the Sprint 
30-day Risk-Free Guarantee, you may return the phone within 
30 days of purchase for a full refund. More information about 
hearing aid compatibility may be found at: 
 
www.motorola.com/accessibility, www.fcc.gov, www.fda.gov, 
and www.accesswireless.org.