RingCentral provides cloud based phone systems which allow companies to break from legacy phone systems and utilize RingCentral's business phone system with fax and voice services. A few of the services offered include: auto-receptionist functionality, a flexible extension structure, multiple voicemail boxes, intelligent call routing, ability to use extension dialing, transfers, and enhanced smartphone integration.
The API allows customers to employ RingOut services from a third party application. Through a GET or POST call, four services: list, call, status, and cancel are accesible. HTTP Cookies must be stored by customers and used on future calls.