Original: Telecommunication network accessibility A full GSM (GSM-900 and GSM-1800), CDMA and TDMA mobile phone network is in place through out the MTR system of stations and tunnels allowing passengers to stay connected underground.
Simplified: Telecommunications network coverage A full GSM (GSM-900 and GSM-1800), CDMA and TDMA mobile phone network is in place through out the MTR system of stations and tunnels.