The capability to send SMS and MMS messages via a Wi-Fi connection on devices running the Android operating system provides an alternative to traditional cellular networks for message delivery. This functionality is particularly useful in areas with poor cellular coverage but reliable Wi-Fi access. For instance, a user in a building with weak cellular signals might still be able to send and receive messages if connected to a Wi-Fi network.
This method of communication offers several advantages. It can reduce reliance on cellular data plans, potentially lowering communication costs. Historically, this feature emerged as a response to user demand for seamless connectivity and a desire to overcome the limitations of cellular networks in certain geographic locations or indoor environments. The introduction of this technology represents a shift towards more flexible and accessible messaging solutions.