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BS 6789-3.1:1985 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-calling facilities
standard by BSI Group, 03/15/1985
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Specifies requirements for auto-calling facilities incorporated in apparatus and includes requirements for automatic repeat attempts.Cross References:
BS 4778
BS 6305
BS 6317
BS 6789:Part 1
CCITT Recommendation T.30
CCITT Recommendation V.25
Telecommunications Act 1984