Offers 3 great phone solutions: Mobile, Office and Fax. With RingCentral Mobile business phone system, you can take your business out of the office and use it with any phone. RingCentral Office you get a simplified yet advanced phone system for your company. No hardware or need for technical skills. RingCentral Fax eliminates the need for a dedicated line, and even eliminates your need for a fax machine.