Preventing unwanted communication from a specific source on an Android device involves a feature that severs the ability of a designated telephone number to send SMS or MMS messages to the recipient’s device. This action effectively stops text-based communication from the sender. For example, if a user is receiving harassing messages, adding the sender’s number to a restricted list will halt further text messages.
Limiting contact is crucial for maintaining privacy and security, preventing spam, and reducing the risk of online harassment. Historically, blocking features have evolved from simple call screening to sophisticated systems integrated directly into operating systems and mobile service provider networks. The ability to control incoming communications strengthens the user’s autonomy over their digital interactions.