Comment Get a new box (Score 3, Informative) 81
If all you have is an old-style connection on your house, call up your telco's repair line and request that they replace it with a new network access box. The new box will have a wonderland of easy-to-wire connection options for your extension needs.
I've done this a half dozen times (rentals, and now my own house) and they've always prompty replaced the equipment at no cost. Plus the linemen are usually quite friendly and if you show some interest and/or knowledge in phone wiring, they're usually delighted to give you free advice about setting up a your home runs and planning out your extensions. They might even slip you some equipment for the inside wiring.
I've done this a half dozen times (rentals, and now my own house) and they've always prompty replaced the equipment at no cost. Plus the linemen are usually quite friendly and if you show some interest and/or knowledge in phone wiring, they're usually delighted to give you free advice about setting up a your home runs and planning out your extensions. They might even slip you some equipment for the inside wiring.