3. PUBLICATIONS OF THE ITU-T SECTOR World Telecommunication Standardization Assembly proceedings: Book 2 Montreal, 2000 Book 2 contains the minutes and summary records of the meetings, the reports of the Conference Committees, the list of participants and the list of documents. MEDIA PRICE CHF LANGUAGE ARTICLE ISBN PAGE NBR EFS 19675 19677 19679 92-61-09341-8 92-61-09342-6 92-61-09343-4 310 328 336 124.- EFS 124.- 3.2 ITU-T Recommendations The ITU-T Recommendations developed by the ITU Telecommunication Standardization Sector constitute the basis for international telecommunication standards. They are based on studies on technical, operating and tariff questions and serve to standardize telecommunications on a worldwide basis. Although non-binding, they are widely used because they enable the interconnectivity and interoperability of networks and the provision worldwide of telecommunication services. At present, more than 3 100 ITU-T Recommendations on some 100 000 pages are in force on topics from service definition to network architecture and security, from dial-up modems to Gbit/s optical transmission systems to Next-Generation Networks (NGN) and IP-related issues. ITU-T Recommendations are made available individually as soon as they are prepared in ITU-T Study Groups and approved by ITU-T Members. The announcement of each new or revised ITU-T Recommendation is made through the ITU News magazine, the Notifications, and the List of ITU-T Recommendations. There exist three complementary formats of the ITU-T Recommendations available for sale: the paper version, individually downloadable electronic format and DVD-ROM. Customers who wish to receive further details and information related to the availability and price of these Recommendations should refer to the List of ITU-T Recommendations which contains a comprehensive description of all the series as well as the ordering facilities. This List is available in on request from the ITU Sales Service. It is also available online via Internet at www.itu.int/publications. For more information, please contact the ITU Sales Service at sales@itu.int. 56 Series Subject area A Organization of the work of ITU-T B Means of expression: definitions, symbols, classification C General telecommunication statistics D General tariff principles E Overall network operation, telephone service, service operation and human factors F Non-telephone telecommunication services G Transmission systems and media, digital systems and networks H Audiovisual and multimedia systems I Integrated services digital network J Cable networks and transmission of television, sound programme and other multimedia signals K Protection against interference