How to deregister your phone number from Google RCS

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Source: Here's how to deregister your phone number from Google's RCS Chat

• Google has finally made it easier for users to deregister their phone numbers from its RCS chat system.
• Users can now deregister their phone number and disable RCS chat features with an online form.
• The new system hasn't been formally announced by Google yet.

Troubleshoot RCS chat

messages.google.com