Vodafone Idea extends WiFi calling service to more states, here is how to use it
VoWiFi allows the customer to make calls using any Wi-Fi network and also VoWiFi allows making calls without a mobile network or weak mobile network, and currently, it is applicable for the above-mentioned states.
Vi Vowifi Wifi Vowifi Volte Service Service Level Agreements Slas Nokia Radio Access Network Vodafone Idea
Source: indiatoday.in