Ericsson and China Mobile has successfully demonstrated a dual mode HD voice over LTE (VoLTE) call between TD-LTE and LTE FDD based on ST-Ericsson's multimode modem and Renesas Mobile' quad-mode chipsets during the 2013 Mobile World Congress (MWC) in Barcelona.
Maravedis-Rethink projects 458 million dual-mode (TD-LTE + FDD-LTE) devices activated by 2016, according to the latest research report titled "Global 4G Device Forecast 2012-2016."