ITU-T U.201-1993 Interworking between the Teletex Service and the International Telex Service - Telegraph Switching International Telex Service Study Group IX; 21 pp
As a consequence of a reform process within the International Telecommunication Union (ITU), the CCITT ceased to exist as of 28 February 1993. In its place, the ITü Telecommunication Standardization Sector (ITü-T) was created as of 1 March 1993. Similarly
ITU-T U.201-1993 history
1993ITU-T U.201-1993 Interworking between the Teletex Service and the International Telex Service - Telegraph Switching International Telex Service Study Group IX; 21 pp