Nokia secures GSM-Railway contract from PKP PLK, Poland March 31, 2018 | Europe Company News Nokia, together with its partners Herkules, Pozbud and Wasko, has secured a five-year contract from PKP Polskie Linie Kolejowe S.A. (PKP PLK) to deploy a nationwide turnkey GSM-Railway (GSM-R) and mis... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password