Meet the 20-cent 'cloud phone' [telecom]

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Camden, Maine (CNN) -- Nigel Waller set out to create a $5 phone.

It didn't work. After much research, the cheapest phone he could make still cost about $20, only a dollar less than the cheapest on the market, he said.

If he wanted to bring cheaper cell phone service to the world's poor

-- people who can't afford a $25 mobile handset, many of whom live on $1 a day -- he had to come up with a new idea.

His solution, the "cloud phone," is now being rolled out in Africa.

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