Why, you may ask, would Zappos--which you probably know as that online shoe store with the great return policy--need an API, much less a developer platform? Well, Zappos doesn't just sell shoes these days; they also carry men's and women's clothing, handbags, housewares, and other related products. And if there's one thing online shoppers love, it's new ways to shop.
CallME's RESTful click-to-call API allows you to integrate Click-to-Call into your website as connect any phone number to another number easily. The service provides calling from a browser, voice messaging and a few other telephony features.