Wi-Fi calling enables data to be sent over the Internet instead of via a cellular network.
Mobile Wi-Fi calling allows some mobile smart phone users to make calls using a local area network (LAN) Wi-Fi Internet connection, instead of corresponding with a nearby cell phone tower. Depending on your service carrier, this may present some savings from a billing and service quality standpoint, especially on international calls.
Voice Over Internet Protocol (VoIP)
Mobile Wi-Fi calling utilizes the same technology as VoIP calling technology, but it's accessible via a wireless Internet connection instead of a wired Internet connection. VoIP technology transfers data and information over the Internet via an IP address instead of through phone lines or radio frequencies like traditional phone communications.
Drop Out
Wi-Fi calling is especially helpful in preventing a phenomenon associated with cellular communications called "drop out." This occurs when radio frequency signals sent from a nearby cell phone tower are unable to reach the handset. It commonly occurs in dense urban areas or in impenetrable concrete or steel buildings. Wi-Fi calling uses a signal from a Wi-Fi LAN, so the signal is broadcast and picked up from a much shorter range -- and inside of impenetrable surfaces.
Seamless Transfer
Assuming you are using a handset that has Wi-Fi connection capabilities, calls are capable of transferring from cellular communication to Wi-Fi, and vice-versa in mid-call. If a Wi-Fi calling-enabled handset is being used, this may provide additional coverage in areas where service was not previously available. In simple terms, when using a Wi-Fi-enabled cell phone, a Wi-Fi LAN acts as a repeater for a cellular signal.
Application
For a smartphone to be enabled with Wi-Fi calling capabilities, the phone must come equipped with a preloaded application. According to Kineto Wireless, the company responsible for developing this technology, a Wi-Fi calling application cannot be purchased retroactively on the marketplace. It is important to check with wireless service providers to see if they offer Wi-Fi calling service as well as handsets that support the technology.
Tags: Wi-Fi calling, cell phone, Internet connection, cell phone tower, connection instead