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Ok, so it first calls the first entered number, then says "please hold while Jajah connects you" or something, then the second number is called and connected. Both calls show up as "unknown".
There was a dude on TV back home that used to this in a low-tech way: just holding two phone receivers against each other while dialing two diametrically opposite persons or organizations. So it would be e.g. a butcher and the vegetarian association, or the bicyclists union and the triple a. And so on and so forth - pretty damn funny if you ask me.
(Note, if it were a weekday I might use this for more interesting purposes. Connecting the local Festival of Light moral crusaders with Stormy Summer's Adult Entertainment and Massage Parlour, for instance. )