William Alexander Hannah, CCIE Collaboration #25853, CCSI #32072, along with numerous other Cisco Unified Communications and data center specializations, and VMware certifications, has been an independent IT and telephony consultant, author, and technical editor for more than 12 years. He has been a technical trainer for more than eight years, and has taught more than 20 different courses for Cisco. Alex is a Senior Courseware Developer and Subject Matter Expert for Global Knowledge, designing all CCNP Collaboration courseware, labs, and infrastructure. He has done a wide array of IT and telephony consulting for many different companies in the eastern portion of the United States. A former Senior Architect and Senior Presales Engineer for two Cisco Gold Partners in the Southern Virginia area, Alex is now the principal owner of Hannah Technologies LLC, an IT consulting and training firm based in Midlothian, Virginia. Alex has implemented advanced IP telephony and video installations in his area for more than 12 years. When he is not working, he can be found on a boat, wakeboarding with friends and family. He can be reached at email@example.com.