Which component is essential for facilitating media transmission in Genesys Cloud?

The WebRTC phone trunk is essential for facilitating media transmission in Genesys Cloud because it allows real-time communication directly through a web browser. WebRTC (Web Real-Time Communication) technology enables voice and video communication without the need for additional software or plugins, making it a crucial component for seamless media transmission. This allows users to initiate and receive calls directly from their browser, enhancing user experience and accessibility.

When using a WebRTC phone trunk, the communication is browser-based, which simplifies the integration of voice services into applications. This is particularly important in cloud environments, where flexibility and accessibility are key. It enables a smooth connection between users and the Genesys Cloud environment without relying on traditional phone systems.

The other components mentioned—PSTN, Edge Group, and Telephony—play supportive roles or are part of the overall infrastructure but do not specifically address the direct transmission of media in the browser context like the WebRTC phone trunk does.