Ericsson to test FRMCS on test track at Żmigród, Poland October 1, 2024 | Company News, Europe Company News, Europe News, News PKP Polskie Linie Kolejowe S.A. (PKP PLK) has signed a letter of intent with Ericsson to test the Future Railway Mobile Communication System (FRMCS) in Poland. Ericsson will test FRMCS on a test track... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password