There are many different wireless mobile phones available, and some of the wireless mobile phones work better with some hearing aids than others. The FCC has requirements for some, but not all, wireless phones to be hearing aid compatible.
On April 9, 2012, the FCC approved a new technical standard for testing phones for hearing aid compatibility (HAC). After this new standard is adopted and a 2-year transition period is completed, the Commission’s rules requiring phones to be hearing aid-compatible will apply to handset operations over additional air interfaces and frequency bands. Stated another way, the Commissions’ HAC rules will now apply to a range of new technologies and will allow for more accurate measurements of hearing aid interference, i.e, the new standard will improve the measurement criteria for determining if a mobile phone is hearing aid compatible or not.