Zte f160 User Manual page 88

ZTE F160 User Manual
does not cause harmful interference.
Caution: Changes or modifications not expressly approved by the manufacturer could void the user's
authority to operate the equipment.
Use Your Phone with a Hearing Aid Device
Your F160 device is compliant with the FCC and IC Hearing Aid Compatibility (HAC) requirements.
When some wireless phones are used near some hearing devices (hearing aids and cochlear implants),
users may detect a buzzing, humming, or whining noise. Some hearing devices are more immune than
others to this interference noise, and phones also vary in the amount of interference they generate. The
wireless telephone industry has developed ratings for some of their mobile phones to assist hearing-device
users in finding phones that may be compatible with their hearing devices. Not all phones have been rated.
Phones that have been rated have a label on the box. Your F160 has been tested for hearing aid device
compatibility and has an M[4] and/or T[4] rating.
These ratings are not guaranteed. Results will vary, depending on the level of immunity of your hearing
device and the degree of your hearing loss. If your hearing device happens to be vulnerable to interference,
you may not be able to use a rated phone successfully. 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 and are likely to generate less interference
with hearing devices than phones that are not labeled. 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 contain telecoils.) The more immune your hearing aid device is,
the less likely you are to experience interference noise from your wireless phone. Hearing aid devices
should have ratings similar to those of phones. Ask your hearing health-care professional for the rating of
your hearing aid.
Hearing devices may also be measured for immunity to this type of interference. Your hearing device
manufacturer or hearing health professional may help you find results for your hearing device. The more
immune your hearing aid is, the less likely you are to experience interference noise from wireless devices.
For additional information about the FCC's actions with regard to hearing aid compatible wireless devices
and other steps the FCC has taken to ensure that individuals with disabilities have access to
telecommunications services, please go to www.fcc.gov/cgb/dro.
Turn on the HAC Setting
When the HAC setting is on, your F160 sends the audio from your phone calls to the telecoil rather than
to the microphone of your hearing aid. You are likely to hear calls much better because volume is
increased and background noise and feedback are diminished. The HAC setting improves only the calls
you listen to through the earpiece. It does not affect calls heard on the speakerphone or with a headset.
Turn off the Bluetooth function. HAC requires extra battery power, so watch your battery consumption
when it's turned on.
CAUTION: Do not turn on the HAC setting unless you use a hearing aid with a telecoil. Using this
setting without a hearing aid or with a hearing aid without a telecoil may be harmful to your hearing.
80 Confidential and Proprietary Information of ZTE CORPORATION