AT&T receives FCC Waiver approval, still whining about T-Mobile and Sprint

Earlier this week AT&T announced that there'd be a delay in it's Wi-Fi calling rollout due to a waiver from the FCC. The waiver would allow AT&T to rollout Wi-Fi calling without supporting TTY (teletypewriter) for deaf and hard-of-hearing people. Today, the FCC has approved the waiver and will allow AT&T to support Wi-Fi calling without...