Quickly looking at it, not sure if it does do voip.
It provides wan IP connectivity but that is for internet connectivity not so much for VoIP. I guess.
Theory is, if it has an IP address it should be able to connect to 3cx, but i do not think you can route voice traffic on your DCS-VIP port i think it is more for daisy chaining multiple Samsung PBX's.
I think this is a candidate for future reference and I would put it in the "more research" required drawn.