What is "Wi -Fi Calling" -I can't listen to smartphones | Mynavi News Mynavi News Mynavi

Smartphones have both mobile phones and computers.So, if you look at the specifications, you can't compare with the jargon ...In this corner, we will gently explain such smartphone -related terms.This time is about "Wi-Fi Calling".

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Wi-Fi Calling is a function that can use various processes that depend on SIM via wireless LAN/Internet.Even inside the building or mountainous areas where the radio waves of the cellular line can not reach, it is possible to arrange mobile phones and send and receive SMS as long as the wireless LAN environment is in place.It can be called a function to reinforce/expand the mobile phone communication area with wireless LAN.

The biggest advantage of this feature is that you can use the phone number you usually use as long as you are abroad.Normally, voice calls cannot be made in places where celluler lines are not available (outside the area), but there is no such restriction if there is a smartphone compatible with Wi-Fi Calling.Even when you are abroad, you will be able to stand and arrive at the telephone if you have a wireless LAN environment (within the domestic fee/domestic call plan), saving international roaming costs.

Wi-Fi Calling is provided as a communication carrier service for the convenience of unlicened mobile access (UMA), which is required to install a gateway.In the United States, T-Mobile US has been available since 2007 and Sprint since 2014, and can be used on some Android devices and Windows Phone.However, instead of the OS -built function, voice calls and SMS are performed using a dedicated application.

Apple also supported Wi-Fi Calling as a standard function from iOS 8.Compatible models are limited to iPhone 5s/5c/6/6 Plus, but if the SIM of the communication carrier that supports Wi-Fi Calling is inserted, the Wi-Fi Calling function can be used without a dedicated application.。

However, as of January 2015, there is no Japanese communication carrier that supports Wi-Fi Calling.Because it is a highly convenient function, I would like to expect early introduction.

(Article provision: AndroWire editorial department)