Anthony Shen

Ostertag DeTeWe Communications GmbH develops and sells private branch exchange telephone systems and some consumer wireless products. It also provides wireless handsets, which transmit and receive voice, text, images, multimedia and other forms of information, communication and entertainment. The company sells its products primarily through direct sales, and also utilizes distributors, resellers, manufacturer's representatives, telesales and electronic commerce. It was founded in 1887 and is headquartered in Berlin, Germany.

Aastra Technologies Ltd. developed, marketed and supported a portfolio of products, systems and applications included both traditional and open standard Internet protocol based solutions. These solutions included communications servers, gateways, telephone terminals, wireless devices, advanced software applications, UC clients and Unified Communication applications. It served the majority of telephone companies in North America and Europe, with a growing presence in South America and Asia. The company was founded in 1983 and was headquartered in Concord, Canada.

Part of Mitel Networks Corp., Aastra Telecom, Inc. provides telephone communications services. The company is based in Concord, Canada.

Mitel Networks Corp. engages in the provision of cloud and enterprise communications and collaboration solutions through software product development. It operates through Cloud and Enterprise segments. The Cloud segment through the MiCloud brand comprises of cloud-based UCC solutions such as voice services, dial plans, audio conferencing, voicemail, call center functionality, video conferencing, along with team collaboration applications that provide mobility and reliability, and are built to suit small and growing businesses along with large-scale enterprises. The Enterprise segment offers products, services, and applications that support customers that prefer private cloud or on-site or deployment under the MiVoice brand. The company was founded by Michael CJ Cowpland andTerence Matthews in 1972 and is headquartered in Ottawa, Canada.