Thailand’s largest mobile carrier, Advanced Info Service (AIS) has launched iSwop, a postpaid service that allows subscribers to pay for data consumption monthly rather than by recharging when credit runs out. iSwop subscribers can use up their leftover monthly voice call quota for connecting to the Internet with one minute of voice call equating to 5 megabytes of download. “Customers are increasingly switching to postpaid services in line with growing data traffic on smartphones,” said AIS Executive Vice President Pratthana Leelapanang. Although only about 10% of Thailand’s mobile users currently use postpaid schemes, he expects this to rise to 20% by 2018. At AIS, postpaid customers increased by over 15% to 4.9 million in 2014, accounting for 11% of its 44 million subscribers in total. Pratthana expects growth to continue at an annual rate of up to 20%.