> For the complete documentation index, see [llms.txt](https://learn.doubletick.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.doubletick.io/additonal-channels/rcs.md).

# RCS

Set up RCS on DoubleTick and learn how it compares to WhatsApp, and how to send one-on-one and broadcast RCS messages.

RCS (Rich Communication Services) is a dedicated messaging channel on DoubleTick that sits alongside WhatsApp, letting you send rich, interactive messages straight to a customer's default messaging app.

#### In this section

* Getting started with RCS on DoubleTick
* RCS vs WhatsApp Business API: which should you choose
* How to send an RCS message in a one-on-one conversation
* How to broadcast an RCS message
* RCS frequently asked questions


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