Mobile
  • Marketing
  • Service
    • SMS
    • EMS(Enhanced Message Service)
    • MMS
  • OFDMA(Orthogonal Frequency-Division Multiple Access)
  • Cellular Mobile Phone Standard/System
  • GSM(using TDMA)
    • Europe
  • cdmaOne(using CDMA)
    • America
  • Mobile Telephony Communications Protocol
  • GPRS(GSM)
  • EDGE(GSM)
  • CDMA2000 1xRTT
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