Neil Anderson is Director of Enterprise Systems Engineering with Cisco Systems. He has more than 20 years of broad experience in communications systems, including public telephone, mobile phone, and IP networks. At Cisco, Neil's focus is on business networks in the areas of network design, wireless networking, voice-over-IP (VoIP), and video-over-IP systems. He holds a B.S. in computer science. Neil is the co-author of the Networking Simplified series, published by Cisco Press.