Andrew Ehrensing has 17 years of experience with unified communications systems. He is currently a Solution Architect at Microsoft in the Americas Cloud Services organization and has been with Microsoft since 2005. His current area of expertise is in Office 365 and Microsoft Unified Communications tools (Exchange and Lync). Andrew is a regular speaker at TechReady, TechEd, Ignite, Interact, and other industry events, and a Microsoft Certified Master.