After a booming start at Berlin, Germany and San Diego, USA, Yealink's global roadshow is now in full swing across the world

XIAMEN, China, May 3, 2019 /PRNewswire/ -- The first of a series of events, which is a part of Yealink's Global Roadshow 2019, was held in Berlin, Germany onApril 9, 2019. In the USA, residents of San Diego were the first ones to experience the enlightening Global Roadshow event that was held o...