Earlier this month word got out that Facebook was trialing a free voice calling feature in Canada. We said that, if those tests went well, the company would expand to the US. 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. After updating to the latest version, just tap the "i" icon in the top right hand corner while viewing a conversation with a person and you'll see a button for a "free call." The voice call needs to be made over WiFi, however, so don't expect to completely replace your contact list and dialer yet (update: calls can be made over a cellular data connection as well). We've reached out for comment from Facebook, and we'll let you know the moment we hear back. In particular we're wondering when Android users can expect to see the same option turned on for them. Let us know in the comments if Facebook's VoIP has been turned on for you.

Update: We just heard back from a Facebook spokesperson who said "you can only connect with a Facebook friend who also has [the latest] Messenger installed on their iPhone" and that "it's only available on iOS." If you satisfy the requirements and you're still unable to see the Free Call feature, it might not be available yet for you or your friend. We also confirmed that there are no special privacy settings to enable or disable if you want it. Join us after the break for our first impressions.