ZTE, a telecommunications equipment and network solutions provider, on Thursday successfully demonstrated its Uni-Core based Circuit Switched Fallback (CS Fallback) services over Hong Kong CSL Limited’s (CSL) LTE and 3G mobile networks with a commercial smartphone at the 2011 GSMA Mobile Asia Congress (MAC) in Hong Kong.

ZTE Uni-Core solution supports a smooth upgrade path from 3G to LTE/EPC without the requirement to upgrade the infrastructure, protecting operators' investments. CS Fallback is a key feature of the ZTE Uni-Core solution, and enables users to enjoy both high-speed data service over LTE and top-quality CS voice service.

"ZTE’s CS Fallback solution helps operators save costs by making full use of existing networks to provide voice services,” said ZTE President of Core Network Products Xu Ziyang. ”The joint demonstration conducted today with CSL shows that ZTE’s LTE voice solutions are viable and useful for mobile operators.”