Many Sprint Customers Unable to Use Wi-Fi Calling on iOS 11.2

Sprint customers with an iPhone are widely reporting that Wi-Fi calling does not work after installing iOS 11.2 and carrier settings version 31.0.


Hundreds of complaints have surfaced across the web, including the MacRumors discussion forums, Sprint and Apple Support Communities, Twitter, and Reddit, since the software update was released earlier this month.

All models of the iPhone that support Wi-Fi calling appear to be affected, ranging from the iPhone 6 to iPhone 8 Plus, among others.

It's unclear if the issue is due to iOS 11.2 or the updated carrier settings, which support features like Wi-Fi calling and VoLTE. AT&T, Verizon, and T-Mobile customers are not affected, suggesting this is a carrier-specific problem.

Many affected customers have performed basic troubleshooting, such as resetting the iPhone's network settings or simply turning the device off and on again, but there doesn't appear to be a solution that works on iOS 11.2.

As a temporary workaround, some users have downgraded to iOS 11.1.2 and found that Wi-Fi calling becomes functional again.

MacRumors does not have an iPhone on the Sprint network in its possession, so we're unable to reproduce the issue. Apple and Sprint have not responded to multiple requests for comments over the past few days.

Last week, a support representative on Sprint's website relayed that the carrier plans to apply a temporary fix across a limited number of Wi-Fi calling servers while evaluating a long-term solution to the apparent bug. After several days, however, Wi-Fi calling is only working intermittently at best for some customers.

Apple also appears to be collecting data from affected customers who contact the company so that its engineers can investigate the matter, as it routinely does with any potential hardware or software issues.

For those unaware, with Wi-Fi calling, you can make or receive a phone call if you have a Wi-Fi connection in an area with little or no cellular coverage. The feature can be enabled in Settings > Phone > Wi-Fi Calling.

We'll update this article if we receive any additional information from Apple or Sprint about the issue and a potential fix.

Related Roundup: iOS 11

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Wi-Fi Calling and VoLTE Expand to O2 and Other Carriers on iOS 10.3

Following yesterday's iOS 10.3 release, several carriers around the world have enabled support for native Wi-Fi calling and VoLTE on iPhone.


In addition to updating to iOS 10.3, the features require installing a carrier settings update to be enabled. Your device should prompt you to install the carrier settings update in Settings > General > Software Update.

Features may be limited to certain iPhone models, so check with your carrier. British carrier O2, for example, has only enabled support on iPhone 7 and iPhone 7 Plus right now, with plans to add other devices soon.

The full list of carriers that have just enabled native Wi-Fi calling on iOS 10.3:
  • Australia: Optus
  • Austria: A1 Telekom
  • Belgium: Telenet
  • Greece: Cosmote
  • Hong Kong: 1010
  • Norway: Telia
  • Poland: Orange, Play
  • Switzerland: Sunrise
  • United Kingdom: O2
The full list of carriers that have just enabled VoLTE on iOS 10.3:
  • Denmark: 3
  • Greece: Cosmote
  • Peru: Movistar
  • Poland: Orange
  • Russia: MegaFon
  • Turkey: Turk Telecom
  • United Kingdom: O2
To enable Wi-Fi calling, open the Settings app, tap on General > Wi-Fi Calling, and toggle on Wi-Fi Calling on This iPhone.

To enable VoLTE, open the Settings app and tap on Mobile Data > Mobile Data Options > Enable 4G > Voice & Data.

Meanwhile, Verizon customers with an iPhone running iOS 10.3 can now make and receive Wi-Fi calls on other iCloud-connected devices, including the iPad, iPod touch, Apple Watch, and most 2012 or later Macs, even if the iPhone is turned off. The devices must be signed into the same Apple ID used on the iPhone.

Related Roundup: iOS 10
Tags: Wi-Fi calling, VoLTE

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Three UK Now Supports Native Wi-Fi Calling on iPhone

British carrier Three has seeded a carrier settings update—version 27.1—that enables native Wi-Fi calling on iPhones.

three-wifi-calling
Three previously required iPhone customers to use its free Three inTouch app for Wi-Fi calling, but the carrier settings update released on Friday introduces system-level support for Wi-Fi calls and texts under Settings > Phone > Wi-Fi Calling.
We know that sometimes you can't get signal when you're indoors, but that shouldn't mean that you have to go off the grid. With Three inTouch Wi-Fi Calling, you can call and text whenever you're on Wi-Fi in the UK, even if there’s no mobile signal.
Three joins EE and Vodafone among carriers in the U.K. with native support for Wi-Fi calling on iPhones.


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Verizon Will Support Wi-Fi Calling on Other iCloud Devices on iOS 10.3

Verizon customers running the new iOS 10.3 beta have discovered that the carrier has added an option for Integrated Calling (Calls on Other Devices).

wi-fi-calling-other-devices
The feature enables iPhone users to make and receive Wi-Fi calls on other iCloud-connected devices, including the iPad, iPod touch, Apple Watch, and most 2012 or later Macs, even if the iPhone is turned off or not on the same Wi-Fi network. The devices must be signed into the same Apple ID used on the iPhone.

AT&T, Sprint, and T-Mobile already support Wi-Fi calling on supported iCloud-connected devices, so Verizon was the last holdout among the four major carriers in the United States. The feature is also supported by smaller U.S. carriers MetroPCS and Simple Mobile and by a few other carriers internationally.

Wi-Fi calling on other devices may not be live yet for all Verizon customers on iOS 10.3 beta, but it should be ready in time for the final version.

Related Roundup: iOS 10
Tags: Verizon, Wi-Fi calling

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