RCS stands for Rich Communication Services, which is a communication protocol between mobile telephone carriers and between phone and carrier, aiming at replacing SMS messages with a text-message system that is richer, provides phonebook polling, and can transmit multimedia. RCS is a revamped form of messaging that comes with a host of functionality and security features that SMS simply cannot provide. Some of the key features of RCS include group chat, delivery of high-resolution photos or videos, read receipts, location sharing, and the ability to send richer media. RCS is considered by many to be a more convenient and wide-ranging communications platform than SMS and even other OTT counterparts. To use RCS, users need to have a device that supports it and have it turned on in their messaging app.