User's Manual

Important Safety Information 9
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 in finding 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
DuraForce XD has an M3 and a T3 rating.
These ratings are not guarantees. Results will vary depending on the
user’s hearing device and the individual's 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.)
Note: This phone has been tested and rated for use with hearing aids
for some of the wireless technologies that it uses. However, there may
be some newer wireless technologies used in this phone that have
not been tested yet for use with hearing aids. It is important to try
the different features of this phone thoroughly and in different
locations, using your hearing aid or cochlear implant, to
determine if you hear any interfering noise. Consult your service
Using Your Phone With a Hearing Aid Device