How do you use a line tone / probe tester for continutity testing?

i have a basic line toner with a probe that i use to find lines... then i saw one at the store that says for continutity testing also on the box... is that a special feature that i don't have or just don't know that i do? i need to test a line for continuity and don't want to buy another device if mine... show more i have a basic line toner with a probe that i use to find lines... then i saw one at the store that says for continutity testing also on the box... is that a special feature that i don't have or just don't know that i do?
i need to test a line for continuity and don't want to buy another device if mine can do it, but i threw away the box so can't tell if it is a feature or a way of connecting it and testing.
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