Why does Genesys Cloud require that I have so many open ports on my firewall?

It is important to keep in mind that the majority of these open port requirements are only for outbound access – not inbound access. More specifically, all client connections (including BYOC Premises Edges, WebRTC Clients, and hard phones for BYOC Cloud and Genesys Cloud Voice customers) to Genesys Cloud are initiated as outbound connections to Genesys Cloud cloud services. When network access restrictions are used, such as a firewall, Genesys Cloud recommends allowing client outbound access on the specified ports to any IP destination.