Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a term for a telephone system allowing subscribers to dial trunk calls without operator assistance.
Read more about Subscriber Trunk Dialling: Terminology, Explanation, History
Famous quotes containing the word trunk:
“That trunk of humors, that bolting-hutch of beastliness, that
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stuffed cloak-bag of guts, that roasted Manningtree ox with
the pudding in his belly.”
—William Shakespeare (1564–1616)