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

Verizon recently enabled 5G service in Cleveland and Columbus, OH, and Hampton Roads, VA. In addition, the operator made 5G service is available in the professional football stadium and hockey arena in Buffalo, New York. With these additions, operators 5G service is now available in 31 cities across USA.

Zain Saudi Arabia has announced commercial launch of 4G LTE network.

Alcatel-Lucent  and Vodafone are conducting the first European field trial of TWDM-PON ultra-broadband access technology as the operator prepares its network to address growing network data traffic and mobile backhaul demands.

ZTE has helped China Telecom successfully complete commercial testing for IPv6 capabilities on its mobile network in Hunan province, a key milestone in China Telecom’s plans for future 4G LTE deployment.

U.S. carrier MetroPCS has selected Ericsson as the supplier of equipment and services to transform its distributed nationwide Evolved Packet Core network. The transformation will enhance key services including high-speed data, voice over LTE (VoLTE) and Rich Communication Services for MetroPCS customers across the United States.

Denmark’s National IT and Telecom Agency (Telestyrelsen) has anounced the dates for holding the auction of spectrum in 900 MHz and 1800 MHz frequency bands.