RCS stands for Rich Communication Services, which is a modern industry standard for messaging that provides an upgraded, rich messaging experience compared to SMS or MMS. RCS offers a better overall messaging experience with features that are similar to what you find on iMessage, WhatsApp, and Facebook Messenger. Encrypted messaging, enhanced media sharing, group chats, and real-time typing indicators are a few of the improvements that come with RCS chat. When you use RCS chats, your messages are sent with the Rich Communication Services (RCS) protocol over Wi-Fi and mobile data. RCS messaging is a step up from regular texting, with features like end-to-end encryption, media sharing, location sharing, and typing indicators.

To use RCS, you need to turn on RCS chats in your messaging app. If your carrier and device aren’t automatically set up for RCS chats, you may be offered RCS chats. You might be asked to provide your phone number. If your carrier supports RCS but your device isn’t automatically set up for RCS chats, you may get a notification to "Do more with Messages." If you get this notification, you can turn on RCS chats by following the instructions on your device. RCS chats will be turned on only when all the participants in a conversation have RCS.

In summary, RCS is a modern industry standard for messaging that provides an upgraded, rich messaging experience compared to SMS or MMS. RCS offers features like encrypted messaging, enhanced media sharing, group chats, and real-time typing indicators. To use RCS, you need to turn on RCS chats in your messaging app, and all participants in a conversation need to have RCS turned on.