AT&T receives FCC waiver to roll out Wi-Fi calling

After challenging T-Mobile and Sprint for rolling out Wi-Fi calling without regulatory approval, AT&T has announced that it has received the requisite waiver from the FCC. The FCC requires that all carriers offering Wi-Fi calling support teletypewriter (TTY) for the hearing-impaired, but the waiver allows AT&T to roll out the feature with a newer form of accessibility service called real-time text (RTT).

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