Twitter get phone calls, Facebook gets voice chat

Twitter users on Thursday will, for the first time, be able to make voice calls directly to each other through the microblogging service.

Look out, Facebook users: Here comes voice chat.

Sometime in the next few weeks, the social network's tens of millions of users will begin to be able to have high-quality voice conversations, even as its third-party developers are able to start including voice in their applications.