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'''Busy line interrupt''' is a function on [[land line]] telephones that allows a caller to interrupt a phone conversation of another caller,<ref>[www.icc.illinois.gov/downloads/public/edocket/115077.pdf INWARD ASSISTANCE OPERATOR SERVICES]</ref> especially one who does not have [[call waiting]].▼
▲'''Busy line interrupt''' is a function on [[land line]] telephones that allows a caller to interrupt a phone conversation of another caller,<ref>[www.icc.illinois.gov/downloads/public/edocket/115077.pdf]</ref> especially one who does not have [[call waiting]].
Much like [[long distance]] calling before the late 90s, 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.
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