The ability to transmit short message service (SMS) texts through a Wi-Fi network on Android devices allows users to bypass traditional cellular networks for text messaging. This function utilizes internet connectivity instead of relying solely on the cellular provider’s infrastructure to deliver messages. Examples include using applications that route SMS traffic via internet protocols when a Wi-Fi connection is available, or when a mobile network is unavailable.
This capability offers several advantages, particularly in areas with weak or non-existent cellular signals but available Wi-Fi. It can reduce or eliminate SMS charges incurred through a cellular plan, especially when roaming internationally. Early iterations of internet-based messaging focused primarily on data transmission, but the integration of SMS functionality extended accessibility and convenience for users, enabling wider communication options.