NSN Completes Live VoLTE Tests in China Mobile’s TD-LTE Network

Nokia Solutions and Networks (NSN) said that it has successfully completed the world’s first live video call and an extensive set of test cases for Voice over LTE (VoLTE) in China Mobile’s pre-commercial TD-LTE network in Fuzhou.

To verify the functionality and performance of VoLTE in its TD-LTE network, China Mobile set up parallel VoLTE trial projects with several mobile broadband equipment vendors in different parts of the country. NSN completed the first TDD eSRVCC video call on January 4, 2014, and a set of tests on January 29, 2014.

A video call made in an LTE network that utilizes eSRVCC allows a call that is established in the IP Multimedia Subsystem (IMS) over VoLTE and then handed over to 2G/3G using voice continuity. This means the voice portion of the call can continue seamlessly even if 4G coverage is no longer available.

“Our hard work in integrating the VoLTE solution in China Mobile’s pre-commercial TD-LTE network paid off when we were able to complete this set of tests ahead of our competition,” said Markus Borchert, president of Greater China Region at NSN.

Our solution allows efficient use of deployed network assets and provides exceptionally fast call setup times.”

The solution will be commercially available in March across both TDD and FDD variants of LTE.

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