U.S. carrier T-Mobile has launched Voice over LTE (VoLTE) service in the Seattle area. Operator is initially offering VoLTE service over existing LG G Flex and Samsung Galaxy Note 3 and Galaxy Light devices. 

French mobile service provider Bouygues Telecom has chosen Ericsson to launch VoLTE services to its live, commercial 4G/LTE network in France. The service will provide HD (high definition) voice conversations and enriched IP-based communication services such as video calling over LTE. 

Singapore's mobile operator SingTel has unveiled 4G ClearVoice, a commercial full-featured Voice over LTE (VoLTE) service, in collaboration with Samsung and Ericsson. Operator's VoLTE service offers full suite of telephony features such as call waiting and forwarding on the 4G network.

US carrier AT&T plans to introduce High Definition (HD) Voice on an all-IP, Voice Over LTE (VoLTE) network in select markets beginning May 23. 

Initially, HD Voice from AT&T will be available in select areas in Illinois, Indiana, Minnesota and Wisconsin

Japanese mobile carrier NTT DOCOMO plans to launch high-quality voice and video calls using Voice-over-LTE (VoLTE) technology on its LTE network, beginning late June.

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. 

T-Mobile Czech Republic plans to cover 93 percent of the population and 80% of the territory with 3G and LTE networks by the end of the year. Operator's LTE network operator will cover 51% of the population and 73% of the area by end of 2014.