Busy line interrupt: Difference between revisions

Revision as of 21:28, 23 November 2020

Revision as of 03:04, 13 April 2024

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'''Busy line interrupt''', also known as '''emergency breakthrough''', is a function onof telephone [[land line]] telephonescarriers thatin allowswhich an [[Switchboard operator|telephone operator]], on request by a caller, to interruptinterrupts a phone conversation ofbetween anotherother caller,parties.<ref>[http://www.icc.illinois.gov/downloads/public/edocket/115077.pdf INWARD ASSISTANCE OPERATOR SERVICES]</ref> especially one who does not have [[call waiting]]. It can usually only be initiated by request to the [[Switchboard operator|telephone operator]].

This is especially useful for services without [[call waiting]].

Much like [[long distance calling]] before the late 1990s, busy line interrupt is a service provided, for instance, to allow people to contact a family member in the event of an emergency if the receiving party's line is busy and the news cannot wait.