 general software aspects for telecommunication systems SG 11-Signaling requirements and protocols SG 12-End-to-end transmission performance of networks and terminals SG 13-Multiprotocol and IP-based networks and their internetworking SG 15-Optical and other transport networks SG 16-Multimedia services, systems, and terminals SG 17-Security, languages, and telecommunication software SG 18-Mobile telecommunication networks SSG-Special Study Group, IMT-2000 and Beyond Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. First Things First Chapter 1 The standards are published in a series of alphabetically arranged documents and are available as books, online resources, and CDs. They are functionally arranged according to the alphabetical designator of the standard as follows: A-Organization of the work of ITU-T B-Means of expression: definitions, symbols, and classification C-General telecommunication statistics D-General tariff principles E-Overall network operation, telephone service, service operation, and human factors F-Nontelephone telecommunication services G-Transmission systems and media, digital systems, and networks H-Audiovisual and multimedia systems I-Integrated services digital network J-Transmission of television, sound program, and other multimedia signals K-Protection against interference L-Construction, installation, and protection of cables and other elements of outside plant M-TMN and network maintenance: international transmission systems, telephone circuits, telegraphy, facsimile, and leased circuits N-Maintenance: international sound program and television transmission circuits 0-Specifications of measuring equipment P-Telephone transmission quality, telephone installations, and local line networks Q-Switching and signaling R-Telegraph transmission S-Telegraph services terminal equipment T-Terminals for telematic services U-