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Review title: two things left off the details
Product review: These phones so far work very well. There are two points to heed if you are doing wiring for them.The phone takes in telco lines two at a time. One connecting cable/wire carries lines 1 and 2, and the second carries 3 and 4. DO NOT FEED a dedicated fax line nor a DSL line to line one (first cable, inner pair of wires in a 4-wire jack/plug). Leave that as plain as you can since it seems to be the administrative line for the system.If you're feeding a line with DSL into this puppy, it REQUIRES a DSL filter on the line. Feed DSL in on line 3 (the inner pair of the second cable) as a telco DSL filter will filter the inner pair of line 3 and pass through on line four (the outer pair). That will make this phone's setup easy.
