stateful autoconfiguration

• De facto: From Latin, literally meaning from what is done, that is, in fact. Standards not established by such formally constituted bodies, that may even be established by a dominant vendor in its own self-interest and often for its own internal use in the context of an ad hoc solution. De facto standards take on the effect of formal standards simply because they become so widely accepted. Hayes, IBM, and Microsoft, for example, have developed numerous specifications that have become de facto industry standards.

• Du jour: From French, meaning of the day.The popular standard of the day. One day 10 years ago, ATM was really hot and a lot of people made a lot of money talking about ATM and selling products based on ATM. It seemed like only the next day that IP was really cool. (I made this one up.) standard definition television (SDTV)

See SDTV.

• Table O-1: OSI Reference Model Layers
• Table O-2: G.709 Line Rates and Corresponding SDH/SONET Line Rates
• Table P-1: Evolution of PBX technology
• Table P-2: Military and Aviation Phonetic Alphabet
• Table Q-1: Selected ITU-T Q-Series Recommendations
• Table R-1: Before and After: Bell Operating Companies (BOCs) and Regional Bell Operating
• Table R-1: Before and After: Bell Operating Companies (BOCs) and Regional Bell Operating
• Table R-2: Coaxial Cable Types
• Table S-1: SDTV Scanning Formats
• Table S-2: SONET/SDH Signal Hierarchy
• Table T-1: North American Digital Hierarchy: T-carrier
• Table T-2: TCP/IP Protocol Suite
• Table V-1: Electromagnetic Signal Propagation Velocity (Approximate)
• Table V-2: Vertical Redundancy Check (VRC)
• Table V-3: Selected ITU-T V-Series Recommendations
• Table W-1: ITU-T Transmission Windows
• Table X-1: DSL Technology Comparisons
• Table X-2: ITU-T X Series Recommendation Groups
• Table X-3: Select X Series Recommendations
• TACS (Total Access Communications System)
• Tagged Image File Format-Fax (TIFF-F)
• Tagged Image File Format (TIFF)
• tail circuit
• talk battery
• talk path