What broadband bandwidth is needed for WiFi calling to work properly?

WiFi calling is very efficient and uses only around 100–120kbps. The majority of broadband services should be easily capable of running WiFi calls.

WiFi calling uses only a small percentage of your broadband service.

However, suppose all of your flatmates or family are simultaneously using WiFi on multiple devices for streaming videos or downloading big files. In that case, it may result in a slight loss of voice quality of your call.