I've no idea, I'll go check tomorrow, but I got a feeling there's no switch, why do these home builders add cat5, but skip the switch??? Not like they're pricey.
Well today you are lucky to have two phone jacks actually connected (master bedroom and kitchen) without paying extra.
It's not the cost of the cable/devices, it's the labor time as well as the 'warranty' headache.
A lot of times you will have cat5 ran to all rooms and the 'closet' but unterminated. They may include a patch panel, but again chances are it's up to the buyer to terminate to it.
What really sucks is some of the time they don't label the cables properly.
In the end OP, without knowing what we are looking at, you will more than likely need to buy a switch, terminate to the patch panel, terminate in the room to a wall plate and then patch down to the switch.
Even better was seeing one house that had a patch panel/wiring closet, but they never ran power to it (private home builder and an example of you get what you pay for).