A FIRST-HAND HISTORY OF MOBILE COMMUNICATIONS

How GSMchanged the world

The story of the people, ideas and technology that created a global standard and connected billions.

Provisional AI-assisted restoration of an archival photograph showing four men at a GSM meeting in Bonn, 1987.
Bonn, Germany 1987

A brief timeline

Key moments on the road to a global standard.

  1. 1970sThe need
    for a common standard
  2. 1982GSM concept
    established
  3. 1987Key decisions
    in Bonn
  4. 1991GSM Phase 1
    specification
  5. 1992First GSM
    networks
  6. 2000sGlobal expansion

From the original archives

Original 1987 GSM Memorandum of Understanding; the desktop preview shows a title-and-purpose detail of its first page

The 1987 GSM
Memorandum of Understanding

Original document  ·  7 September 1987  ·  PDF

The founding document that set out the shared commitment to implement a pan European 900 MHz digital cellular mobile telecommunications service by 1991.

Explore the archive

First page of the original Home Office frequency-requirements working paper Handwritten draft base-station recommendations, page 4 of the original GSM technical specification Original signed page of the Bonn ministerial declaration of 19 May 1987
Original scans · editorial arrangement

Explore rare agreements, working papers and original records that reveal how GSM became a global standard.

Featured story

Do mobiles cause cancer?

How did an ordinary technical study become a national scare? A misunderstood research proposal, a professor’s answer taken out of context and increasingly alarming newspaper headlines sent the story spiralling.

Read the story

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