Symphony WebRTC, SymphonyChat, and MassiveMessages is a Google Chrome extension designed for Hubspot users, providing a suite of communication tools. This extension requires special credentials from MCM Telecom to function, enabling users to enhance their calling capabilities directly from the browser.

Key features include a Click-to-Dial function that transforms telephone numbers into clickable links, making it easy to initiate calls. Users can also access call logs for up to 90 days, allowing them to track their call history and integrate it with Hubspot results. The WEBRTC dialer supports calls with any MCM Telecom Symphony Service, ensuring compatibility and convenience for users looking to streamline their communication processes.