As a dubain i am so happy to post this. Coca-Cola Hello Happiness campaign aims to bridges gap between UAE labors and their families back in home. Hello Happiness Phone Booth were installed in Al Quoz and various other industrial areas, these folks can make a call for 3 minutes just for 3 Coke bottle caps rather than putting any money.
Update 1: We just received some extra information about the campaign. As per Coca-Cola campaign manager, the 5 machines were placed for approx 10  hours from 21st March till 21st April 2014 in labor camps in Dubai.  During this period they have logged ‘134,484 minutes’ that is roughly about 22,000 hours of calls. In addition, he said “The Hello Happiness initiative pays tribute to the hard work and efforts of these laborers and serves as a gesture of goodwill and appreciation,â€Â