Wi-Fi calling

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Wi-Fi calling

Making phone calls over a Wi-Fi network. Both the phones and carrier infrastructure must support Wi-Fi calling, prioritizing voice over data in the real-time environment of voice. With a single mode phone, users make calls only within a Wi-Fi hotspot. Dual-mode phones seamlessly switch between the cellular carrier and open or pre-qualified Wi-Fi hotspots.

Wi-Fi calling was designed to eliminate dropped calls in areas where the cellular signal is weak. It also saves money for customers who have carrier plans with a fixed number of monthly minutes. Also called "voice over Wi-Fi," "Wi-Fi telephony," "wireless VoIP," and "voice over wireless LAN" (Vo-WLAN).

Who's Doing It?
As of 2016 in the U.S., Verizon, AT&T, Sprint, T-Mobile and Project Fi (Google) support Wi-Fi calling on selected smartphone models.

Skype, FaceTime, Et Al.
People are also able to make voice calls over Skype, FaceTime and various other apps, providing the recipients have the same program installed in their computers or mobile devices. See Wi-Fi, Wi-Fi Assist and Project Fi.
References in periodicals archive ?
Wi-Fi calling typically allows a user to place and receive calls on a device via a Wi-Fi connection, even when the cellular network has poor reception or is not connected.
Cell phone companies are slowly but surely offering Wi-Fi calling, a seamless switch of a user's phone service from cellular to Wi-Fi for calls and texts.
For more information on Wi-Fi Calling and compatible devices, visit https://support.
We have removed the pain point by offering International Value Roaming coupled with the ability to use Wi-Fi calling.
Apple's latest iPhones offer built-in Wi-Fi calling, which shifts traffic off of cellular networks, wherever available, for example.
The phone has Wi-Fi calling support to help manage mobile-network usage and can act as a WiFi Hotspot, providing high-speed connectivity for multiple devices.
WORLDWIDE COMPUTER PRODUCTS NEWS-December 19, 2011-VoIP service provider Vopium releases BlackBerry Wi-Fi calling app(C)1995-2011 M2 COMMUNICATIONS http://www.
It's Bluetooth-enabled so it can be paired with other Bluetooth devices, and it has built-in Wi-Fi to access hot spots and enjoy Wi-Fi calling.
Sberbank Telecom is working with major device manufacturers that support Wi-Fi calling without the need to install any additional applications.
1 changelog for the ZTE Axon 7 is T-Mobile Wi-Fi Calling support, emoji and gif keyboard updates and Google's February security update.
Etisalat also plans to leverage the benefits of virtualisation and software to 'economically spin-up virtual mobile network cores for Internet of Things (IoT), Wi-Fi calling and Smart City initiatives in a matter of hours and days'.
In "Making Cell Coverage Moot," we examine the trend of Wi-Fi calling through VoLTE, which will eliminate the need to fix poor cell signals.