Newton's Telecom Dictionary is the "bible" of the telecommunications, networking, Internet, computer and information technology industry. It earned this reputation through its widespread adoption for training, for sales and for management understanding of industry technology. Substantially expanded, the 27th edition has 26,978 definitions — with 695 new definitions and about 1500 updates reflecting industry changes since the 26th edition.

Many of the new entries are in hot areas including:

• 802.11 WiFi networks
• 3G, 3.5G and 4G/LTE
• satellite communications
• smartphones
• fiber broadband networks
• IP voice, data, and video
• DOCSIS, 1.1., 2.0 and 3.0
• convergence
• optical networks
• internetworking
• cloud services
• virtualization and visualization
• network security and network weaknesses
• military communications
• network economics
• MoCA and new local area networks
• ecommerce
• service delivery and billing
• government regulation
• industry mergers and acquisition
• green computing and green telephony
• social networks

Newton's Telecom Dictionary differs from technical dictionaries (on paper or online) in that it not only defines terms, but explains them and puts the terms in the context of alternatives and often offers advice on getting the maximum benefit from the technology. Some of the definitions are actually mini-essays, covering several pages. All definitions — no matter how technical the term - are explained in words a non-engineer businessperson can understand. This “understandable words” approach is not an attempt to "dumb down" the definitions but to make them understandable and accessible to everyone, including engineers who may come from a different field of engineering and not be familiar with telecom’s nuances