The CCITT, considering that according to Article 29 of the Convention of the International Telecommunication Union (Nice, 1989) the various cases in which free services are accorded are set forth in the Administrative Regulations; that the term “service telecommunication” is defined in Article 2, point 2.4 of the International Telecommunications Regulations (Melbourne, 1988).
ITU-T D.192 (REV 1) SPANISH-1992 history
1992ITU-T D.192 (REV 1) SPANISH-1992 Principles for Charging and Accounting of Service Telecommunications (Study Group III) 5 pp