Specifications of signalling systems no.7 (Recommendations Q.700 - Q 795)

Specifications of signalling systems no.7 (Recommendations Q.700 - Q 795)

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Bibliographic Details
Main Authors: International Telegraph and Telephone Consultative Committee, International Telecommunication Union, CCITT Plenary Assembly (9th : 1988 : Melbourne, Australia)
Format:
Published: Geneva : International Telecommunication Union, 1989
Subjects:
Telephone
Data transmission systems

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