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BS 6789-1:1984
M00000535
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BS 6789-1:1984 Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators. Specification for general requirements
standard by BSI Group, 02/29/1984
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Requirements for added facilities on telephones and data modems for connection as subscribers' apparatus to exclusive lines of the PSTN. Lists the facilities specified in the other parts of the standard and requires the supplier to state which are relevant to an apparatus submitted for approval.Cross References:
BS 6301
BS 6305
BS 6317
BS 6320
BS 6789:Part 2
BS 6789:Part 3
BS 6789:Part 4
BS 6789:Part 5
BS 6789:Part 6
BS 6789:Part 7
British Telecommunications Act 1981