SANYO Electric Co. Ltd. SCP-85H 用户手册

 
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 located on the box. Your 
SCP-8500 by Sanyo has [M4T4] ratings. 
 
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 healthcare 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. 
 
 
More information about hearing aid compatibility may be found at:    www.fcc.gov, www.fda.gov, 
and www.accesswireless.org. 
 

 

One way to minimize interference is to set the phone’s Backlight and Keypad Light

 

settings to 

ensure the minimum time interval. 
 

1. Press 

MENU/OK > Settings > Display > Main Screen or Outer Screen. 

2. Select 

Backlight. 

3.  Scroll and select the minimum time interval setting (8 seconds for Main LCD, 5 seconds for 

Sub LCD). 

   

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