Set up Advanced Messaging or AT&T RCS for Android

Rich Communication Services (RCS) offers features like read and delivery receipts, is typing notifications, large file transfers, and larger group chats. 

RCS varies by smartphone and software version.

When you upgrade from a current Advanced Messaging RCS for Android smartphone to a new smartphone featuring Google Messages:

• We suggest you use Samsung Smart Switch or other transferring applications to move messages from your current Samsung device to your new one if you don’t choose Copy apps & data during initial device setup. Smart Switch is in the app section in the Samsung folder.
• You can copy text, picture, multimedia, and RCS messages from your old Samsung device to your new one.
• Once you transfer your apps and data to your new Android device, set Google Messages as your default messaging app for a better RCS messaging experience.

Good to know: If you recently upgraded to a new smartphone using the same phone number from your previous phone and you're having issues, such as missing text messages (SMS/MMS), you may need to turn off RCS chats on your previous phone:

1. Enter your phone number at Google Messages' Disable Chat page and follow the instructions.
2. On your smartphone, open the Messages app, go into Messages settings, then RCS Chats, features, and toggle on Turn on RCS Chats if it's toggled off.

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