AltiGen Communications, Inc. (AltiGen) is a provider of cloud-based Internet Protocol-private branch exchange (IP-PBX) and Contact Center solutions. The Company designs, delivers and supports Voice over Internet Protocol (VoIP) phone systems and call center solutions. It has two operating segments: North America and Rest of World. The North America segment consists of the United States, Canada, Mexico, Central America and the Caribbean. The Rest of World segment consists of Europe. Its Unified Communications solutions are designed with an open architecture. Its solutions portfolio is divided into categories, including Hosted Enterprise Cloud Communications Services and Premise-Based Business Communications Solutions. AltiGen's Hosted Enterprise Cloud Communications Services include Hosted Skype for Business, MaxACD Cloud Contact Center, MaxUC Cloud and Session Initiation Protocol (SIP) Trunking Service. The Company's MaxCS IP-PBX is a software-based phone system.