"The impact of video relay services, or VRS, has been titanic for businesses owned and operated by the deaf. VRS has grown into a half-billion-dollar-a-year industry as more and more deaf Americans gain access to speedy mobile data and sophisticated phones," reports Wired magazine. Read more about the technology here, including a look at San Francisco's deaf-owned Mozzeria pizza. Below is a Wired video that comes with the article, but Wired chose not to caption it.