T-Mobile might not be the only network to offer a WiFi calling service as Sprint is also poised to launch its own system. WiFi calling is a service that allows consumers to make and receive calls, text messages, and access high speed Internet over a WiFi connection. All that is needed is to connect a compatible phone to a WiFi network and the service can immediately be used.
Fresh training material from Sprint discovered by Androidcentral shows that the carrier is preparing to launch its own WiFi calling service and will start with at least two of its current Android devices. It’s still not clear what these models are but the documentation made mention of the Samsung Galaxy S4 Mini and the Samsung Galaxy Mega.
Sprint’s WiFi Calling system allows its customers to make calls over a WiFi connection and it won’t count against the existing voice minutes. Calls through WiFi are not interchangeable with calls made over CDMA and vice versa.
For subscribers to avail of WiFi Calling a compatible device is needed which will have to be enabled first at the company’s web interface. There is no monthly charge in turning on this service.
One other thing worth considering is that the Android Location Services must be turned on first in order to make WiFi calls. The service will only work within the U.S., U.S. Virgin Islands and Puerto Rico. WiFi calls cannot be made from other locations other than what is listed and it won’t work using a VPN connection. Also, outbound calls over WiFi are not possible if there is no CDMA signal where the subscriber is located even if there is a WiFi connection.
One of the benefits of WiFi calling is that if you are in an area with spotty network coverage but with a good WiFi signal you will still be able to make and receive calls and text messages. This service solves most coverage issues which occur in some parts of a building or a room in your house.
There is still no information as to when this service will become available however several company documentation reveals that it will be launched soon.