Call center agents work overnight daily to cater to United States clients in Manila's Makati financial district February 6, 2012. The number of Filipinos who work graveyard shifts to answer calls on behalf of big multinational companies like Citigroup and JPMorgan Chase is now greater than India's 350,000, earning the Philippine's the title - Call Centre Capital of the World. By 2016, the Philippines wants to double the size of the local BPO market to $25 billion, employing 1.3 million workers from 640,000 at the end of 2011. But to be able to that the Southeast Asian nation must convince investors it has more to offer than a huge pool of english-speaking talent. Picture taken February 6, 2012. To match Analysis OUTSOURCING/PHILIPPINES REUTERS/Erik De Castro (PHILIPPINES - Tags: BUSINESS EMPLOYMENT)