Voice over WiFi (VoWiFi)

Category: Science & Technology / Telecom

  • VoWiFi, or Wi-Fi Calling, enables voice calls over a Wi-Fi internet connection.
  • It uses Voice over Internet Protocol (VoIP) technology.
  • In telecom networks it can operate through an IP Multimedia Subsystem (IMS) framework.
  • Users can generally make calls using their existing mobile number and phone dialler.
  • It is particularly useful where cellular signals are weak but Wi-Fi connectivity is available.
  • It can improve indoor connectivity and reduce dependence on cellular signal strength.

Prelims Pointers: Also called → Wi-Fi Calling | Technology → VoIP/IMS | Main benefit → Calling in weak cellular coverage.