The capability of messaging on Android devices without cellular network connectivity, utilizing an internet connection through a wireless local area network, offers an alternative communication method. For example, a user in an area with weak cellular signal but strong Wi-Fi can still send and receive text messages.
This functionality extends communication reach in situations where traditional cellular service is limited or unavailable. It provides cost savings by leveraging existing internet subscriptions rather than incurring cellular charges for messaging. Historically, such capabilities have bridged communication gaps in remote areas or during international travel.