jamming restrictions so they can better control cell phone use in prison. just how widespread is that use? take a look at these 600 phones over here that were confiscate from south carolina state prisons. just over recent months, in some cases, smuggled inside by visitors, in many cases people using creative means to get them in, look at the football here, it was cut open and stuffed with cell phones and a person hurled the football over the barbed wire fence to get them onto prison grounds and then, over here, you have a potato launcher, that someone actually used to fire cell phones onto prison property. from very long distances and as you can see, people are using very creative means to smuggle these phones into state preference, martha. martha: boy, that is incredible. there are even cell phones that can make it into those preference, and you are showing us how creative they are going about doing this and, you know, you needed a dime for the pay phone in the old days. >> reporter: that's right. and, the difference between the pay phone and the cell phones is