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Old 2014-12-04, 03:22 PM
icecube icecube is offline
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Don't think anyone can answer that question over the internet without knowing what the topology is.

If it is a straight wire from 1 room upstairs down to the basement, then yes.

I doubt phone jacks can be wired in series, if they are wired in parallel you need to find out where they all aggregate.
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