“Earlier this month word got out that Facebook was trialing a free voice calling feature in Canada,” Terrence O’Brien reports for Engadget.

“We said that, if those tests went well, the company would expand to the US,” O’Brien reports. “Well, things must have gone swimmingly because, just two weeks later, American customers are starting to see the same feature turn up in the Messenger app [free via Apple’s iTunes App Store].”

O’Brien reports, “The voice call needs to be made over WiFi…”

Read more in the full article here.

[Thanks to MacDailyNews Reader “Dan K.” for the heads up.]