How to Access the Secret Circuit to Existing Home Phone Lines

Accessing the secret circuit in your home phone lines. Connect to your home phone wiring to pipe music, rig an intercom, or connect electronic devices to existing phone lines.

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1. Hi-lines; 2. Dropline: A & B; 3. Network interface; 4. House entry; 6 Lines: R, G - Phone and B, Y - Open.
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