Ribbon Communications Inc. provides communications technology across the United States, Europe, the Middle East, Africa, the Asia Pacific, and internationally. It operates through two segments: Cloud and Edge, and IP Optical Networks. The Cloud and Edge segment offers software and hardware products, solutions, and services for VoIP, VoLTE, and Vo5G communications, unified communications and collaboration, session border controllers, and network transformation products such as call controllers, media gateways, and application servers. The IP Optical Networks segment provides hardware and software products and solutions for IP networking, switching, routing, and optical transport for technologies including 5G, distributed cloud computing, and related applications. The company was formerly known as Sonus Networks, Inc. and changed its name to Ribbon Communications Inc. in November 2017. Founded in 1997, it is headquartered in Plano, Texas.