Dan Borislow, Whose MagicJack Changed Telephone, Dies at 52

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Dan Borislow, whose “MagicJack,” peddled in television infomercials, helped pioneer free phone calls through the Internet, has died. He was 52.

His death was confirmed by Brad Shewmake, a spokesman for MagicJack Vocaltec Ltd., the maker of the device. Borislow was the founder and former chief executive officer of the company, based in Netanya, Israel, and West Palm Beach, Florida.