# Contact Center consumers

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**Consumers** are external users who contact your business via voice, video, or chat. Consumers mainly operate within ZCC SDKs on the following platforms:

-   [Android](/docs/contact-center/android/)
-   [iOS](/docs/contact-center/ios/)
-   [Web](/docs/contact-center/web/)

These SDKs let you integrate Zoom Contact Center engagement capabilities — such as a "Chat with Us" button or real-time video support — directly into your website or mobile app. This ensures a frictionless experience for consumers while keeping them within your brand ecosystem.