As wireless carriers move from analog to digital services, accessibility for the deaf and hard of hearing is a concern. Digital technology means more features and improved efficiency, but some digital phones can cause interference for hearing aid users.
To make sure the deaf and hard of hearing can use digital wireless devices, the Federal Communications Commission (FCC) updated the Hearing Aid Compatibility Act of 1988 (HAC Act), passing regulations to increase the number of hearing aid-compatible wireless devices.
HEARING AID COMPATIBILITY (HAC)
M and T Ratings
A ratings system is used to assist consumers with identifying a wireless telephone that is most compatible with hearing aids. Handsets tested for hearing aid compatibility are rated M1 through M4. Handsets that receive a M3 or M4 rating usually cause the least amount of interference with hearing aids (typically, the higher the M rating, the less interference).
A telecoil is a small device that is built into some hearing aids for use with the telephone as well as assistive listening devices. Not all hearing aids have telecoils. Phones with a T-Rating of T3 or T4 meet FCC requirements and are more likely to work well for people who use hearing aids with telecoils with telephones. T4 is the better/higher of the two ratings.
Although the ratings system is not a guarantee, it is a useful tool for consumers to determine the most appropriate wireless handset.
Functionality Level
IT&E uses the following categories (and definitions) for determining Levels of Functionality:
Basic phones - Phone is able to be used for Voice and SMS only.
Feature phones - Phone is able to be used for Voice, SMS, and WAP browsing.
Smart phones/PDAs - Phone is able to be used for Voice, SMS, Web browsing and PC synchronizing.
Devices with new technologies may not yet be tested for hearing aid compatibility. The following information will be disclosed with those devices:
These phones 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 provider about its return and exchange policies and for information on hearing aid compatibility.
