GSM digital mobile telephony (2G)
GSM, telefonía móvil digital (2G)
- Date
- 1991 · confidence high
- Place
- Radiolinja, Helsinki, Finland (first call); ETSI standard, Sophia Antipolis, France
- Credited to
- Groupe Spécial Mobile of CEPT/ETSI; first call by Radiolinja on 1 July 1991
- Field
- Communication
What it is
A European digital mobile telephony standard with SIM cards, international roaming and text messages. It became the world standard and brought mobile phones to billions of people.
What it led to
- Mass-market mobile telephony and European leadership (Nokia, Ericsson)
- International roaming and SMS
- Mobile connectivity in developing countries ahead of fixed lines
Built on
- Information theory1948
- Microprocessor (Intel 4004)1971
- Handheld mobile phone (Motorola DynaTAC)1973
- NMT: Nordic mobile telephony with international roaming1981
- 1G cellular networks
- digital signal processing