Just FYI but for Residential the minimum recommended cable type is Cat5e for both voice and data. Cable is cheap and going with Cat 3 anywhere in your home wouldnt make sense to me. Id run Cat5e and if the budget allowed Cat6. Just because you run Cat 6 doesnt mean you have to use all Cat 6 rated components at this time. You might start out with Cat5e components which are much cheaper and in the future if the need arises then you can swap out jacks and patch panels. But at least the cabling itself would be in place and if there was any area where you might need to convert a voice jack to data then youd be all set as the proper cable is allready in place.
