RingCentral

RingCentral combines team messaging, HD video meetings, and a virtual business phone system into a single desktop and mobile application. Users can exchange instant messages, share files, create tasks, and send SMS, while also making VoIP calls with features such as call routing, auto‑attendant, and voicemail. Video meetings support up to 200 participants and include screen sharing, live transcription, recording, and chat.

The platform offers native integrations with more than two hundred business applications, including Google Workspace, Salesforce, and Microsoft 365, and provides APIs for custom extensions. It also includes specialized tools such as RingCentral Rooms for conference‑room video, RingCentral Events for virtual sessions, and RingCentral Organizer for self‑service check‑in and kiosk mode.

The client is available for macOS, Windows, iOS, and Android, and can be downloaded for free. A free account gives access to RingCentral Video Pro, with optional upgrades to paid plans for additional capabilities.