(Telecompaper) Singapore Telecommunications (SingTel), in partnership with Samsung and Ericsson, hasunveiled a commercial 300Mbps LTE-Advanced service for smartphones. The service will be available from 23 August when SingTel launches the Samsung Galaxy S5 4G+, a handset compatible with 4G LTE-Advanced networks. Another compatible smartphone, the Samsung Galaxy Alpha 4G+, will be available from SingTel in September.