2024 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2023 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2022 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2021 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2020 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2019 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2016 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2015 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2010 47 CFR 20.19 – Hearing aid-compatible mobile handsets

2009 47 CFR 20.19 – Hearing aid-compatible mobile handsets