Voice over WiFi (VoWiFi) primarily utilizes a WiFi connection to transmit voice calls, but whether it consumes mobile data depends on the specific implementation and configuration by your mobile carrier.
In many cases, VoWiFi calls are treated as regular voice calls within your mobile plan, and the data used for the call is not deducted from your mobile data allocation. Instead, the call is routed over the WiFi network, and any data exchanged is typically considered part of your standard voice service.
However, it’s important to note that there are instances where data usage may still be a factor. Some carriers use a feature called VoLTE (Voice over LTE) alongside VoWiFi, especially when transitioning between WiFi and cellular networks. In these scenarios, data may be used to establish and maintain the call, but the actual voice data is transmitted over the chosen network, whether WiFi or cellular.
Additionally, if you are making calls to numbers outside of your carrier’s network or engaging in features that rely on data, such as video calling or sending multimedia messages during a call, data usage may be applicable. These specifics are outlined in the terms and conditions of your mobile plan.
To get accurate information about whether VoWiFi calls on your device consume data, it’s recommended to check with your mobile carrier. They can provide details about how VoWiFi is implemented on their network, any associated data usage, and whether there are specific considerations for your plan. Understanding these details ensures that you can make informed decisions regarding your voice calling preferences without unexpected data charges.