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BS 6789-3.2:1987
M00000312
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BS 6789-3.2:1987 Apparatus with one or more particular functions for connection to the British Telecommunications public switched telephone network. Apparatus with auto-calling, auto-answering and auto-clearing facilities. Specification for auto-answering and auto-clearing facilities
standard by BSI Group, 12/23/1987
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Cross References:
BS 4778
BS 5428:Part 9
BS 6305
BS 6317
BS 6789:Part 1
BS 6789:Section 3.1