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ben jeffs ben jeffs
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6 years ago
Loop start signaling and ground start signaling tell the switch that a telephone is ________-hook.
 
  Fill in the blank(s) with correct word
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scatherinescatherine
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6 years ago
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ben jeffs Author
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6 years ago
Brilliant
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Yesterday
Good timing, thanks!
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2 hours ago
Thanks for your help!!
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