jhon11
2011-06-12 09:58:46 UTC
GSM (Global System for Mobile Communications, originally Groupe Spécial
Mobile), is a standard set developed by the European Telecommunications
Standards Institute (ETSI) to describe technologies for second
generation (or "2G") digital cellular networks. Developed as a
replacement for first generation analog cellular networks, the GSM
standard originally described a digital, circuit switched network
optimized for full duplex voice telephony. The standard was expanded
over time to include first circuit switched data transport, then packet
data transport via GPRS. Packet data transmission speeds were later
increased via EDGE. The GSM standard is succeeded by the third
generation (or "3G") UMTS standard developed by the 3GPP. GSM networks
will evolve further as they begin to incorporate fourth generation (or
"4G") LTE Advanced standards. "GSM" is a trademark owned by the GSM
Association.
Mobile), is a standard set developed by the European Telecommunications
Standards Institute (ETSI) to describe technologies for second
generation (or "2G") digital cellular networks. Developed as a
replacement for first generation analog cellular networks, the GSM
standard originally described a digital, circuit switched network
optimized for full duplex voice telephony. The standard was expanded
over time to include first circuit switched data transport, then packet
data transport via GPRS. Packet data transmission speeds were later
increased via EDGE. The GSM standard is succeeded by the third
generation (or "3G") UMTS standard developed by the 3GPP. GSM networks
will evolve further as they begin to incorporate fourth generation (or
"4G") LTE Advanced standards. "GSM" is a trademark owned by the GSM
Association.
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jhon11
jhon11