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Chris Olsen, CCSI, CCNP, along with numerous other Cisco voice and data center specializations (in addition to Microsoft, VMware, and Novell certifications), has been an independent IT and telephony trainer, consultant, author, and technical editor for more than 22 years. He earned his Bachelor of Science in Mechanical Engineering and Master of Science in Mechanical Engineering at Bradley University in the 1980s. Chris has been a technical trainer for more than 22 years, and has taught more than 60 different courses in Cisco, Microsoft, VMware, and Novell. For the past nine years, he has specialized in Cisco and Microsoft Unified Communications, along with VMware virtualization and Cisco data center technologies. He has done a wide array of IT and telephony consulting for many different companies. Chris and his wife, Antonia, live in Chicago and Mapleton, Illinois.