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gi.x3 gi.x3
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6 years ago
________ signaling uses a separate wire pair to carry signaling information, thus requiring a four-wire circuit between switches, one pair for normal voice conversation and the other for signaling.
 
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nino99nino99
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6 years ago
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gi.x3 Author
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6 years ago
Brilliant
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
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