Evolution of cellphone wdd2x

The Evolution of the Cell Phone

  • AT&T launches 0G (MTS) Cellular Service

    AT&T launches 0G (MTS) Cellular Service
    This deployment was very small. They were only about five thousand customers in Saint Louis that had access to this network. Calls were extremely expensive.
  • AT&T Launches 0G (IMTS) Cellular Service

    AT&T Launches 0G (IMTS) Cellular Service
    The main advantage of IMTS was that it enabled customer dialing – operators were no longer necessary. Devices to access the network were also smaller and lighter.
  • NTT (Japan) launches 1G Analog Cellular Network

    NTT (Japan) launches 1G Analog Cellular Network
    The 1G Network enabled a large number of people to make use of cellular technologies. Mobile devices were reduced in size. A downfall of this technology was that it required a massive amount of spectrum.
  • The Birth of GSM and CDMA: First GSM network launched in Finland.

    The Birth of GSM and CDMA: First GSM network launched in Finland.
    The first GSM network was launched in Finland. It allowed for even smaller devices. 2G Networks eventually enabled consumers to send text messages, surf the web, and make phone calls.
  • 1xEVDO Standard Finalized

    The CDMA 1xEVDO standard is finalized. It will enable better voice quality and faster data speeds. It will later be used by Verizon and Sprint.
  • NTT (Japan) launches first 3G GSM network

    NTT (Japan) launches first 3G GSM network
    NTT Docmo launches the third generation of the GSM standard. This enables faster data speeds.
  • KT (South Korea) launches first 4G WiMax Network

    KT (South Korea) launches first 4G WiMax Network
    KT launched a 4G WiMax network that more than doubled the max download and upload speeds.
  • Telstra (Australia) Launches first HSPA+ data network

    Telstra (Australia) Launches first HSPA+ data network
    HSPA+ is an evolved form of 3G. It enables faster data speeds. In the US, it is marketed as 4G.
  • 4G (LTE) launches

    Mobile carriers began deployment of LTE networks in 2009. LTE offers faster speeds than WiMax, enables voice over IP, and is far more efficient.
  • T-Mobile deploys HD Voice calling

    T-Mobile deploys HD Voice calling
    HD calling enables better quality calls. It is the first US carrier to do so.