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.

Russia's telecommunications operator MTS has completed the Voice over LTE (VoLTE) call on a telco cloud infrastructure using Nokia’s technology. The end-to-end testing was successfully conducted in the operator’s live LTE network with  user devices. 

Nokia and SK Telecom have reached a throughput speed of 3.78 Gbps by aggregating 10 spectrum frequencies allocated for both LTE variants for a 200 MHz of bandwidth. Earlier Nokia has demonstrated 2.6 Gbps TD-LTE throughput in February 2014 with US operator Sprint.

ZTE has announced that company's VoLTE Solution is supporting CSL's commercial launch of voice over LTE services in Hong Kong for voice and video calls. Almost 100,000 users are using the VoLTE service since it was launched by CSL in late August.

China Mobile recently completed the commercial verification of LTE TDD inter-band 3CC Carrier Aggregation (CA) using Huawei's commercial base station and Qualcomm Technologies’ commercial terminal based on the Qualcomm® Snapdragon 810 processor with X10 LTE.

Verizon Wireless will begin deploying small cells into its 4G LTE network during the second half of 2013 working with network vendors including Alcatel-Lucent. Small cell deployments are part of operator's balanced approach to network capacity.