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A missed call is a telephone call that is deliberately terminated by the caller before being answered by its intended recipient, appearing as a "missed call" on the receiver's cellphone. It is commonly used in South Asia, the Philippines and Africa as a way of communicating pre-agreed messages for free. For example, a group of friends may agree that two missed calls in succession means "I am running late".
In Bangladesh, missed calls make up 70% of cellular network traffic at any given time. The Cellular Operators Association of India, COAI, has instituted a study to understand the revenue implications of missed calls in India. Industry estimates of loss of revenue due to this social phenomenon are 20–25% to as much as 30%. At least one company in Bangalore is using this "tool" to generate business.
Friends misscall a member of their group who was unable join them that evening to convey "we're missing you".
In Syria, five missed calls in rapid succession means "I am online, let's chat".
In Bhutan, farmers know how much milk their customers want by the number of missed calls they get.
In India, a missed call from a shop or business means "Your order is ready".
In Bangladesh, an online protest was arranged with the help of a Facebook event on 27 January 2013 demanding the mobile phone operators cut their internet price. More than 250,000 Facebook users participated by exchanging millions of missed calls.