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Altigen Communications, Inc. designs, develops, markets, and supports integrated communications solutions worldwide. It provides MaxCS IP-PBX, a software-based phone system that provides customers with business communications solutions; MaxACD Voice Over Internet Protocol (VoIP) Contact Center, a software-based automatic call distribution engine, which offers call routing and call distribution options; MaxMobile that extends a set of business PBX functionality to smart phone devices; and MaxCommunicator, a Windows-based desktop application, which provides call control and visual voice mail management to the desktop. The company offers MaxAgent, a Windows-based desktop application to bring call control and workgroup information to call center agents; MaxSupervisor, a Windows-based desktop application for call center supervisors; and MaxACD for Skype, a call center solution. In addition, it provides hosted services, which include hosted IP PBX, Skype for Business, session initiation protocol trunk, call center solution, voice and video calling, conference calling, and various long-distance services; and software assurance services, which offer customers with software updates, patches, new releases, and technical support for the applications they are licensed to use. The company serves financial services, healthcare, retail, and business services industries through a channel of distributors and resellers. Altigen Communications, Inc. was incorporated in 1994 and is based in Milpitas, California.

ClearOne, Inc., together with its subsidiaries, designs, develops, and sells conferencing, collaboration, and network streaming solutions for voice and visual communications in the United States and internationally. The company offers a range of audio conferencing products, including professional audio conferencing and sound-reinforcement products for use in enterprise, healthcare, education and distance learning, government, legal, and finance organizations; mid-tier premium conferencing products for smaller rooms, and small and medium businesses, which interface with video and Web conferencing systems; USB-based personal and group speakerphones that could be used with PCs, laptops, tablets, smartphones, and other portable devices; and traditional tabletop conferencing phones used in conference rooms and offices. It provides professional microphones consisting of beamforming microphones, ceiling microphones, and wireless microphones. In addition, the company offers video products, such as video conferencing and collaboration solutions; professional-grade cameras; and AV networking, which deliver the IP A/V experience by streaming time sensitive high definition audio and video, and control over TCP/IP networks. It sells its commercial products to a network of independent professional audiovisual, information technology, and telecommunications distributors, as well as systems integrators, dealers, value-added resellers, and end-users. ClearOne, Inc. was incorporated in 1983 and is headquartered in Salt Lake City, Utah.

Sonim Technologies, Inc. provides ruggedized mobile phones and accessories for task workers. The company offers ruggedized mobile phones, such as Sonim XP10, Sonim XP5plus, Sonim XP3plus based on the Android platform that are capable of attaching to public and private wireless networks; industrial-grade accessories, including remote speaker microphones, multi-bay charging accessories, and in-vehicle hands-free voice communications solutions; and cloud-based software and application services. It sells its mobile phones and accessories primarily to wireless carriers in the United States and Canada; and sells ruggedized phones, barcode scanners, and accessories through distribution channels in North America, South America, and Europe. The company serves transportation and logistics, construction, manufacturing, facilities management, energy and utility, and public sectors. The company was formerly known as NaviSpin.com, Inc. and changed its name to Sonim Technologies, Inc. in December 2001. Sonim Technologies, Inc. was incorporated in 1999 and is headquartered in San Diego, California.

Sunworks, Inc., through its subsidiaries, engages in the provision of photovoltaic and battery based power and storage systems for the commercial, agricultural, industrial, public works, and residential markets in the United States. It is also involved in the design, arrange financing, integrate, install, and manage systems ranging for residential homeowners, and commercial and public works projects. The company was formerly known as Solar3D, Inc. and changed its name to Sunworks, Inc. in March 2016. Sunworks, Inc. was incorporated in 2002 and is headquartered in Provo, Utah.

Westell Technologies, Inc., through its subsidiary, Westell, Inc., designs and distributes telecommunications products to telephone companies in the United States. The company operates through three segments: In-Building Wireless (IBW), Intelligent Site Management (ISM), and Communications Network Solutions (CNS). The IBW segment offers distributed antenna system conditioners; digital repeaters; battery backup units; and system components and antennas, including couplers, duplexers, splitters, filters, and tappers for commercial and public safety in-building wireless systems. The ISM segment provides a suite of remote units, which provide machine-to-machine communications that enable operators to remotely monitor, manage, and control site infrastructure and support systems. The CNS segment provides a range of indoor and outdoor network infrastructure, such as integrated cabinets, power distribution products, copper and fiber connectivity products, and T1 network interface units. The company serves wireless and wireline service providers, multiple systems operators, Internet service providers, systems integrators, neutral host operators, and distributors through field sales organization, distributors, and partners. Westell Technologies, Inc. was founded in 1980 and is headquartered in Aurora, Illinois.