Samsung SPH-I325 - Manual (Page 154)

146 Safety
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.
To ensure that the Hearing Aid Compatibility rating for your phone is maintained,
secondary transmitters such as Bluetooth and WLAN components must be
disabled during a call. See "Turning Bluetooth On and Off" on page 96 for
instructions to disable these components.
More information about hearing aid compatibility may be found at: www.fcc.gov ,
www.fda.gov , and www.accesswireless.org .
More information about hearing aid compatibility may be found at: www.fcc.gov ,
www.fda.gov , and www.accesswireless.org .
Getting the Best Hearing Device Experience With Your Phone
To further minimize interference:
•
Set the phone’s display and keypad backlight settings to ensure the
minimum time interval:
1. Press Start > More > More > Settings > Power Management > Display
time out or Keypad backlight time out.
2. Select the minimum time setting and press .
•
Phones with embedded antennas may produce more interference.
•
Move the phone around to find the point with least interference.