PD 6569-3.2:1992
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hardcopy , PDF
28-09-2012
English
31-10-1992
Specifies requirements for auto clearing and auto answering facilities incorporated in apparatus for connection to some public switched telephone networks. Applies to apparatus where the decision making process which a particular feature comprises is undertaken either by the user of the apparatus, or by the apparatus itself or by other means external to the apparatus.
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