Yellow book

Yellow book

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A.8 access to supplementary services F: acces aux services supplementaires S: acceso a servicios suplementarios ... A. 13 service code F: code de service S : codigo de servicio A numerical code designating a supplementary service.

Title:Yellow book
Author:International Telecommunication Union, International Telegraph and Telephone Consultative Committee. Plenary Assembly
Publisher: - 1981


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