This is the correct setup when your phone line connection comes from a Cable VOIP Router such as Ooma, Comcast, Century TEL/Link, Cox, AT&T, Verizon FIOS, Magic Jack, etc…

IN-LINE (SERIES) – Standard Set Up

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IN-PARALLEL (via splitter and additional line cable supplied)

Only use this connection if you are unfortunate enough to lose caller ID on your line when the call blocker is attached.

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