SK Telecom, Nokia Demonstrate Mission-Critical PTT
Friday, February 03, 2017 | Comments

South Korean operator SK Telecom and Nokia jointly developed a mission-critical push-to-talk (MCPTT) solution, a next-generation PTT communications technology over voice over Long Term Evolution (VoLTE). The companies demonstrated the solution at Nokia's research and development (R&D) center in Kraków, Poland.

As the standard for mission-critical-voice functionality over LTE adopted by the Third Generation Partnership Project (3GPP) standards body, MCPTT enables efficient communications among rescue workers by using a dedicated channel at times of massive disasters.

A statement said MCPTT supports a stable group communications service, even when there is a surge in users, through the application of Group Communication System Enabler (GCSE) based on evolved Multimedia Broadcast Multicast Service (eMBMS), which is a technology that can transmit large-volume multimedia content to massive users at once over a wireless LTE network.

Emergency service organizations such as police and firefighting agencies in countries such as South Korea, the United States and Great Britain called for the development of MC PTT, and the technology was standardized last March 2016 by the 3GPP standard body.

SK Telecom plans to use the MCPTT solution for public-safety LTE (PS LTE) and LTE-railroad (LTE-R) in South Korea and expects to expand its reach to countries that are promoting public-safety network projects such as the United States and Great Britain.

“For the first time in the world, SK Telecom and Nokia have successfully developed MCPTT, the core solution for public-safety networks,” said Shim Sang-soo, senior vice president and head of Infra Business Promotion Office. “SK Telecom will continue to contribute to the successful completion of the public-safety network project in Korea, while actively seeking new business opportunities in the global market.”

South Korea is trialing LTE for public safety in three areas of the country with plans to launch a nationwide network.

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