Cannot test speakers in the client
You are unable test your speakers in the client. You are encountering this problem because you use the WebRTC Phone window. Test your speakers in the separate WebRTC Phone window.
For more information, see Browser window for WebRTC phones and Change your WebRTC phone settings.
For more information about the integrations, see About Genesys Cloud Embeddable Framework, About Genesys Cloud for Salesforce, and About Genesys Cloud for Zendesk.