Aastra Technologies Limited is a Canada-based company which develops, markets, and supports a comprehensive portfolio of enterprise or business telephony solutions, including Internet protocol private branch exchange (IP-PBX), hybrid IP-PBX and traditional PBX telephone systems. In addition, it offers a number of analog, digital, and open standard voice over Internet protocol (VoIP) terminals, as well as a range of wireless digital enhanced cordless telecommunication (DECT) terminals, and a number of advanced software applications, including unified communications, collaborative tools and contact center solutions. It serves a range of telephone companies (telcos), as well as network of dealers and distributors, and operates primarily in North America and Europe. Its products Aastra BluStar, MX-ONE, Aastra 5000, Aastra 400, Aastra 700, Aastra 800, OpenCom, IntelliGate, BusinessPhone, MD Evolution, ClearSpan and Applications. In April 2012, its European subsidiary acquired Comdasys AG.