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. Incoming station wire; 2. Wiring block; 3. Extension phone line; 4. Modular wall jack (only R G wires are functional); 5. R J - 11 modular plug; 6. Primary phone cord; 7. Hardwire to accessory (attach to Y B terminals for secret circuit.)  
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