The CCïïï (the International Telegraph and Telephone Consultative Committee) is a permanent organ of
the International Telecommunication Union (ITU). CCI’IT is responsible for studying technical, operating and tariff questions and issuing Recommendations
ITU-T D.196-1992 history
1992ITU-T D.196-1992 Clearing of International Telecommunication Balances of Accounts (Study Group III) 4 pp