If you’re interested in such things, MLB has yet to switch bullpen phones from land lines to wireless. They’re still testing the technology.
— Brian Costa (@BrianCostaWSJ) April 9, 2013
Not sure what’s to test. My mother has a wireless phone and she still calls the refrigerator the “icebox” and pays for things with checks at the grocery store.
Anyway, once they figure this out, things will presumably be all wireless and futuristic. And we’ll still be using 19th century umpiring technology.