Dell Venue 11 pro i5 7130 Dialer/interface for cellular missing

I have the above tablet the cellular is on working but there is no dialer or interface program?
Does anyone know what program works or what program was used on the tablet originally when it was new with windows 8.1 (running windows 10 pro now) does anyone know what program was used on the next incarnation of the tablet which was the 2 N 1 series from what I understand?