Worldwide LTE-related subscriptions reached 229.7 million in 2013, and will continually grow at a CAGR of 43.6 per cent between 2013 and 2019 to exceed 2 billion, according to latest forecasts from ABI Research. By the end of 2013, LTE-TDD subscribers accounted for 5 per cent of the LTE market, while 94.2 per cent of the LTE market was taken up by LTE-FDD. ABI said all the major mobile operators are showing their commitments to carrier aggregation capable LTE-Advanced technology, which can better handle the anticipated explosion in mobile data traffic with greater bandwidth. ABI Research forecasts that LTE-Advanced subscribers will grow to 750 million in 2019 accounting for 37.3 per cent of overall LTE subscribers. North America will be the most aggressive LTE-Advanced market, followed by Asia-Pacific and Western Europe. In order to revive traditional voice service revenues, many operators are also keen to launch, deploy, or trial Voice over LTE (VoLTE) services as LTE network population coverage heads towards majority population coverage. Global VoLTE subscriptions are expected to surpass 1.09 billion in 2019, of which 34.2 per cent are from Asia-Pacific and 27% from North America. Report