Hello? I'm Calling From Twitter

Twitterers will be able to use the microblogging service to make phone calls beginning today, reports CNET News. A third party system by Jajah will make it possible to call any Twitter account by typing @call@username. The calls, which can be made for free, will be limited to two minutes during the pilot period, but may be expanded if the service proves to be popular. Only Tweeters who follow one another can call each other, and both must have a Jajah account.
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