David Wall
Live online courses, books, and videos on O’Reilly
Bio
David Wall (CCSI #22530), is an industry recognized expert in Cisco convergence and wireless technologies, having achieved the prestigious Certified Cisco Systems Instructor in 2000. David spent 2 years working at Cisco designing and installing laboratories to be used in teaching Cisco voice technologies. In addition to his technical expertise, David is a seasoned author of many prominent computer books.