I think it's pretty stupid to use 8 pin jacks for voice. I always install 6 pin jacks and cat 3 cable. For whatever reason, at my college, they use 8 pin jacks and cat 3 cable. All this does is confuse the end user who will then try to plug their computer's ethernet cable into the wrong jack.
Seeing as the only visible difference to the customer is the color of the jack, I can't really blame them for not knowing where to plug it in.
