It sounds like you need a physical device between both ends. So you couldn't have untraceable radio-like communication. You would just follow the path of sphere

It sounds like you need a physical device between both ends. So you couldn't have untraceable radio-like communication. You would just follow the path of spheres like a wire. But yeah, if you could teleport a magnetic field across long distances with nothing in between you would get both communication and, probably more interestingly, power transfer (induction charging). Depending on the properties of whatever hypothetical device accomplishes this.