WebRTC Softphone Initialization Failure During Zendesk Talk Migration

I’m curious as to why the Genesys Cloud WebRTC softphone fails to initialize with a 401 Unauthorized error during our Zendesk Talk migration?

We are replacing the Zendesk browser-based audio widget with the native Genesys Cloud softphone. The API calls to /api/v2/users/{userId}/webrtc/endpoint succeed, but the media session never establishes. We have verified the agent permissions and browser compatibility. Any insights on the configuration mismatch?