The European Conference of Postal and Telecommunications Administrations ( CEPT ) was established on June 26, 1959, as a coordinating body for European state telecommunications and postal organizations.

The European Conference of Postal and Telecommunications Administrations ( CEPT ) originally standardized the E-carrier system, which revised and improved the earlier American T-carrier technology, and this has now been adopted by the International Telecommunication Union Telecommunication Standardization Sector ( ITU-T ).

The European Conference of Postal and Telecommunications Administrations ( CEPT ) adopted the North American channel assignments, except Channel n ° 23, Frequency 27. 235 MHz ; Channel n ° 24, Frequency 27. 245 MHz ; Channel n ° 25, Frequency 27. 255 MHz.

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