Well it depends do you have a Pots splitter if so What color wires exit the dsl Portion? ps Super weird looking jack P:) But typically you would connect the White blue to the Green and The Blue/white to the Red From both sets of wires to carry dialtone thru As it is a dryloop Connect Just the one from the basement to Limit Extraneous distance on the Loop. -- Every time Someone leaves Sympatico an Angel gets its wings.
reply to Brienza Those are 3 pair cat. 3. As they are not labelled as to the feed try each pair white-blue, white-orange and white-green on the red and green screws. Polarity doesn't matter at this point.
Now if a know it all electrician hooked up the other end at the demarc then chances are the orange and green were used as they don't know colour codes. Try those two on the red and green screws.