Home » BBC News - Technology » technology news » Amazon buys 'smart' doorbell firm Amazon buys 'smart' doorbell firm Unknown 4:28 PM BBC News - Technology technology news Ring makes doorbells that stream videos of people approaching or ringing the front door to phones. from BBC News - Technology http://ift.tt/2CNYfxf Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati