Can suresignal be used on a 4G RBI connection?

Trialling a RBI unit and can’t get an definitive answer from the store on if suresignal be used on a 4G RBI connection? I.E Is a RBI unit able to have a sure signal plugged into it’s ethernet and will the suresignal register/work OK. For the record, yes, my RBI trial unit initially came up with full signal as it found the 3G connection of my sure signal and happily connected to it.