all trunks busy
- (ATB)A single tone that is interrupted at 60 ipm rate to indicate a condition when all trunks in a particular group are engaged.
IT glossary of terms, acronyms and abbreviations. Faulkner Information Services . 2015.
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Reorder tone — The reorder tone, also known as the fast busy tone, is the congestion tone or all trunks busy (ATB) tone of a public switched telephone network. It varies from country to country; in the USA it is a dual frequency tone of 480 Hz and 620 Hz at a… … Wikipedia
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занятость всех соединительных линий — — [Л.Г.Суменко. Англо русский словарь по информационным технологиям. М.: ГП ЦНИИС, 2003.] Тематики информационные технологии в целом EN all outlets engagedall trunks busy … Справочник технического переводчика
ATB — • Advanced Technology Bomber (stealth Bomber) • All Trunks Busy • Atbara, Sudan internationale Flughafen Kennung … Acronyms
ATB —  Advanced Technology Bomber (stealth Bomber)  All Trunks Busy  Atbara, Sudan internationale Fughafen Kennung … Acronyms von A bis Z
ATB — See all trunks busy … IT glossary of terms, acronyms and abbreviations
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