The document provides a letter of reference for Zenie Noon's Certified Telecommunications Network Specialist (CTNS) certification from Teracom Training Institute. The CTNS certification requires completing six online courses involving 66 lessons and exams, achieving a score of 80% or better. It provides a solid foundation of knowledge spanning telecommunications, from traditional telephony to current cellular and IP networking. Thousands of professionals from various organizations have completed this training. The certification verifies a vendor-independent breadth and depth of knowledge in telecommunications and networking fundamentals and best practices.