Last Updated
：2025/12/05
subscriber trunk dialling
Noun
UK
uncountable
Japanese Meaning
加入者直通ダイヤル：オペレーターを介さず、電話番号をダイヤルすることで自動的に幹線通話（長距離通話）を接続するシステム
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(telephony, British spelling) A system of automatic connection of trunk calls through dialling a phone number without operator assistance.
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subscriber trunk dialling
The introduction of subscriber trunk dialling in the 1950s transformed long-distance communication by allowing callers to dial numbers directly without operator assistance.
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The introduction of subscriber trunk dialling in the 1950s transformed long-distance communication by allowing callers to dial numbers directly without operator assistance.
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