Adding camera to existing xfinity home security package

I have the xfinity home security package that came with 2 cameras.  everything is working fine and dandy.  My question is, I bought 2 wireless camera (dlink 932L) and I was wondering if I can add theses cameras to my existing xfinity home security set-up?  On the touchscreen controller there is an option from the settings where you can choose to add a camera but I was wondering if this was possible before I actually do it.   Thanks.