Huh, what do you know, they don't indeed. But Csjarrat is still right; you just need to buy a seperate sim module (they're not that expensive).
Point is, you can use an RCC without a control rig, and still use most of the RCC's stuff. It's not much different from controlling drones with your commlink, except you get the RCC's programs/autosofts/noise reduction options, plus group commands. In fact, the RCC and a control rig are pretty much fully seperate as to what they bring to the table - almost none of the RCC's functions demand a control rig or vice versa (although they do work well together), the only one being the "jumping around" option.