| Subject | Portuguese | English |
| commun. | Constituição da União Internacional das Telecomunicações | Constitution of the International Telecommunication Union |
| commun. | Convenção da União Internacional das Telecomunicações | Convention of the International Telecommunication Union |
| commun. | Instrumento de Alteração à Constituição da União Internacional das Telecomunicações Genebra, 1992 1998 | Instrument Amending the Constitution of the International Telecommunication Union Geneva, 1992, as amended by the Plenipotentiary Conference Kyoto, 1994 |
| commun. | Instrumento de Alteração à Constituição da União Internacional das Telecomunicações Genebra, 1992 1994 | Instrument Amending the Constitution of the International Telecommunication Union Geneva, 1992 |
| commun. | Instrumento de Alteração à Convenção da União Internacional das Telecomunicações Genebra, 1992 1998 | Instrument Amending the Convention of the International Telecommunication Union Geneva, 1992, as amended by the Plenipotentiary Conference Kyoto, 1994 |
| commun. | Instrumento de Alteração à Convenção da União Internacional das Telecomunicações Genebra, 1992 1994 | Instrument Amending the Convention of the International Telecommunication Union Geneva, 1992 |
| commun., tech., law | Setor de Normalização das Telecomunicações da União Internacional das Telecomunicações | International Telecommunication Union - Telecommunication Standardisation Sector |
| commun., UN | União Internacional das Telecomunicações | International Telecommunication Union |
| comp., MS, Braz. | União Internacional de Telecomunicações | International Telecommunication Union (An international organization based in Geneva, Switzerland, that is responsible for making recommendations and establishing standards governing telephone and data communications systems for public and private telecommunications organizations. Founded in 1865 under the name International Telegraph Union, it was renamed the International Telecommunication Union in 1934 to signify the full scope of its responsibilities. ITU became an agency of the United Nations in 1947. A reorganization in 1992 aligned the ITU into three governing bodies: the Radiocommunication Sector, the Telecommunication Standardization Sector (ITU-TSS, ITU-T, for short; formerly the CCITT), and the Telecommunication Development Sector) |
| econ. | União Internacional de Telecomunicações | International Telecommunication Union |
