About the Technical Reviewers

Alex Hannah is a Cisco Certified Systems Instructor for Global Knowledge USA, specializing and teaching the Advanced IP Communications product line. He is president of Hannah Technologies, LLC, a Richmond, Virginia–based Cisco consulting firm specializing in Cisco Advanced IP Communications and application development using Microsoft technologies. He holds a bachelor’s degree in Information Systems from Virginia Commonwealth University. He is a CCIE Voice candidate with certifications including CCSI No. 32072, CCVP, UCCX, and CCNA. In his spare time, you can find Alex on his boat wakeboarding with his lovely girlfriend, Amy, and friends.

Michael Valentine has 13 years of experience in the IT field, specializing ...

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