T-Mobile’s free Bobsled for iOS app was updated a few weeks ago. But, I didn’t notice that it gained the ability to make free voice calls to any landline phone in the U.S., Canada, or Puerto Rico. Fortunately for me Paul Miller at The Verge did and let us know about it.
T-Mobile Bobsled adds free calling for iOS and Android, expands group messaging
I just tested the feature by calling my home phone from an iPad 2. It worked fine.
You can, of course, still make VoIP calls to your Facebook friends without needing any phone number at all.