iOS 9.1 update gives Sprint iPhone users access to Continuity-style Wi-Fi Calling
Following the release of iOS 9.1 on Wednesday, Sprint announced that iPhone users updating their firmware will be able to take advantage of improved Wi-Fi Calling, expanding on Apple's Continuity feature.
Calls to a Sprint iPhone number can now be set to ring on any compatible Apple product signed into iCloud with the same Apple ID, the carrier said. This includes Macs, iPads, Apple Watches, and the iPod touch.
The core iPhone must be an iPhone 5s/5c or later, and all devices must be updated to the latest version of iOS, OS X, or watchOS. After that, each secondary device should have "Calls from iPhone" toggled on under FaceTime settings.
While Continuity provides similar functions, it normally requires an iPhone to have both cellular and Wi-Fi connections active. With Wi-Fi Calling, the feature should work even when a cellular signal is weak or non-existent.
Sprint rival AT&T recently announced NumberSync, which likewise takes after Continuity. AT&T's technology casts a wider net though, linking devices via LTE, and without limiting users to the Apple platform. The catch, though, is that all devices will have to be on a Mobile Share plan.