Home HAC Compliant Handsets
These phones have been tested and rated for use with hearing aids for some of the wireless technologies that they use. However, there may be some newer wireless technologies used in these phones that have not been tested yet for use with hearing aids. It is important to try the different features of these phones thoroughly and in different locations, using your hearing aid or cochlear implant, to determine if you hear any interfering noise. Consult your service provider or the manufacturer of these phones for information on hearing aid compatibility. If you have questions about return or exchange policies, consult your service provider or phone retailer.
Last Updated: 1/30/25
M3 or M4
“M” refers to the device’s RF emissions level, and means the device is intended for use with hearing aids in microphone mode. The higher the “M” rating number on the device, the more likely you will be able to use the device with your hearing aid on the microphone setting.
T3 or T4
“T” refers to the device’s telecoil coupling ability, and means the device is intended for use with hearing aids in telecoil mode. The higher the “T” rating number on the device, the more likely you will be able to use the device with your hearing aid on the telecoil setting.
Tiers
https://www.fcc.gov/hearing-aid-compatibility-wireless-telephones
http://gari.info/