CCITT Comite Consultatif Internationale de Telegraphie et Telephonie This is an international committee based in Geneva, Switzerland, that recommends telecommunications standards, including the audio compression/decompression standards (codecs) and the famous V. standards for modem speed and compression (V.34 and so on). Although this organization changed its name to ITU-T (International Telecommunications Union-Telecommunication), the old French name lives on. See also: CCITT A-law, CCITT u-law, codec, ITU-T, V. standards