Verizon Wireless is the only major carrier in the United States that has not introduced Wi-Fi calling, but it appears that could change in the near future as the FCC today approved the company's request for an FCC waiver [PDF] that will allow it to move ahead with its plans.

Like AT&T, Verizon applied for an FCC waiver to delay implementing a teletypewriter (TTY) service for deaf and hard-of-hearing people until December 31, 2017. Verizon plans to use real-time text (RTT) as an alternative and the waiver will allow it to avoid offering a TTY service until its RTT technology is deployed and operational.



On its website, Verizon says it plans to support Wi-Fi calling "in the future," but has not specified when Wi-Fi calling could be implemented. When AT&T was approved for Wi-Fi calling, the feature was turned on within days of receiving the go ahead from the FCC.

Wi-Fi calling will allow Verizon customers to make phone calls over Wi-Fi in situations where their cellular signal is low, automatically transitioning between Wi-Fi and a cellular connection as needed. AT&T, Sprint, and T-Mobile have all already implemented Wi-Fi calling, but Sprint and T-Mobile have done so without obtaining the necessary waivers from the FCC.