Zertia secures contract for internet security on Makkah-Medina HSR March 20, 2014 | Middle East & Africa Company News Spain-based Zertia Telecom (Zertia) has secured a contract to manage the internet access, security and corporate application integration for Phase II of the Makkah-Medina high-speed rail (HSR) project... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password