GSM passed the 20-year milestone on Friday. Nokia Siemens Networks noted that the first call (below) on a real, live network took place on a network set up by Nokia and Siemens on July 1, 1991 between Finland's then-prime minister Harri Holkeri and Tampere's vice mayor of the time, Kaarina Suonio. The standard had been set up in 1987 but had only been in testing until that day.
