The Wi-Fi Calling option for iPhones is an excellent tool to improve call quality by routing your cellular call over a Wi-Fi network instead of over a mobile one. While mobile networks can be more robust than Wi-Fi plus broadband, many of us place calls inside homes and buildings, or leave in some parts of the country or parts of a municipality with marginal coverage.
However, the option is a combination of elements in iOS and a carrier’s network that have to interlink to work. As a result, you may have Wi-Fi Calling enabled in Settings > Cellular > Wi-Fi Calling and, yet, calls aren’t being made over Wi-Fi.
Readers have described this scenario: They’re near a Wi-Fi access point in their home. They have high-speed broadband service. Cellular calls are terrible in their area. They check the Wi-Fi Calling setting, and it’s enabled. When they place a call, however, it stutters or drops out.
