Wi-Fi calling, also called Voice over wireless LAN (VoWLAN) and VoWiFi, refers to mobile phone voice calls and data that are made over IP networks using Wi-Fi, instead of the cell towers provided by cellular networks. In essence, it is voice over IP (VoIP) over a Wi-Fi network.
Wi-Fi calling, also called Voice over wireless LAN (VoWLAN) and VoWiFi, refers to mobile phone voice calls and data that are made over IP networks using Wi-Fi, instead of the cell towers provided by cellular networks. In essence, it is voice over IP (VoIP) over a Wi-Fi network.
Source: Wikipedia "Wi-Fi calling" · CC BY-SA 4.0
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