Google announced that Rich Communication Services (RCS) protocol is available for android users in the USA. it is an upgrade to SMS protocol. Mr. Sanaz Ahari Product Manager of android messages announced this news on twitter. For using this feature, Android users need to update Google Messages app for android and carrier services. In the United Kingdom and France, RCS is already used. US users by using the RCS standard can send the text messages.
Overs two decades Short messaging service (SMS) is used for text messages. The RCS can be considered as a replacement for SMS service. RCS has a similar feature to those available in iMessages of Apple’s and other platforms use for messaging like WhatsApp and Telegram. By using RCS, read receipts, group chats, and typing indicators are easier to manage. These features are not supported in the SMS system. Rich Communication Services working on cellular networks as well as Wi-Fi. Rich Communication Services chat not end to end encrypted like WhatsApp and imessages chats. By read the recipient feature, you can get real-time texting. You can see some on is replying to your text in real-time. With SMS Feature, conversations are not particularly secure.
Rather than Google, other Mobile hardware companies developed rich Communication Services. Even Google is working on it to make it default feature on android phones. In the RCS servers, a modern software system is used. Google announced they had working on the major cell phone carriers worldwide to adopt the RCS protocol in 2018. The RCS chats are carrier-based services. The RCS messages send to your data plan, not to the SMS plan, and you will be charged for data costs to send it. If someone you want to send messages who is not an android user or have not enabled the chat, then messages will revert back to SMS. To activate the Rich Communication Services (RCS) protocol in android phones, users have to update their carrier as well as messages apps. For updating carrier services, go to google play store, and in my apps and games, see option update carrier service, and the same can update the messaging app.