What is VoWi-Fi?
VoWi-Fi simply stands for voice over Wi-Fi.
VoWi-Fi is a complementary technology to VoLTE and utilises IMS technology to provide a packet voice service that is delivered over IP via a Wi-Fi network.
Where possible, VoLTE calls may be seamlessly handed over between LTE and Wi-Fi and vice versa.
Conversational video is also possible via Wi-Fi (see ViLTE).
What are the benefits of VoWi-Fi?
Both end users and those in the mobile industry will benefit from Voice over Wi-Fi.
Consumers:Can make calls without the need for a mobile signal .
Benefit from security being based on SIM-based authentication as for VoLTE; and Experience better indoor coverage.
Operators need to deploy IP Multimedia Subsystem (IMS) in order to launch VoWiFi. IMS cost would also be saved if they already have VoLTE in the network. So, it’s less expensive than other solutions.
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