international Telegraph and Telephone Consultative Committee. International Telegraph and Telephone Consultative Committee. The International Telegraph and Telephone Consultative Committee. by the International Telegraph and Telephone Consultative Committee. The International Telegraph and Telephone Consultative Committee（C.C.I.T.T.）. The International Telecraph and Telephone Consultative cCommittee (C. C. I. T. T.) The International Telecraph and Telephone cConsultative Committee (C. C. I. T. T.) The International Telecraph and tTelephone Consultative Committee (C. C. I. T. T.) The International Telecraph and Telephone Consultative Committee (C. C. I. T. T.) International Radio Consultative Committee.