The best thing about VoWiFi is that it neither require the upgradation of smartphones nor an installation of any new equipment. According to GSMA, there are 50 VoWiFi services available in 31 countries. Moreover VoWiFi not only overcomes indoor voice coverage issues but also guarantees best users experience in different environments be it indoor or outdoor. This service has attracted many customers who had shifted to OTT services due to bad cellular coverage in their respective areas.
Operators adopted VoWiFi to complement their VoLTE services as both the services powers the same IP multimedia subsystems. VoWiFi when delivered as an App is like VoIP call on the data network. This app allows Wi-Fi calls to be delivered over WiFi but it also over mobile data. The app can function as an individual Wi-Fi calling app or can be integrated with native dialer to make regular calls.
