The GSM logo is uised tae identifee compatible haundsets an equipment. The dots seembolize three clients in the home network an ane roamin client.[1]

GSM (Global System for Mobile Communications (Scots: Global Seestem for Mobile Communications), oreeginally Groupe Spécial Mobile) is a staundart developed bi the European Telecommunications Staundarts Institute (ETSI) tae descrive the protocols for seicont-generation (2G) deegital cellular networks uised bi mobile phones, first deployed in Finland in December 1991.[2] As o 2014 it haes acome the de facto global staundart for mobile communications – wi ower 90% mercat share, operatin in ower 219 kintras an territories.[3]


  1. Sauter, Martin (21 Nov 2013). "The GSM Logo: The Mystery of the 4 Dots Solved". Retrieved 23 Nov 2013. [...] here's what [Yngve Zetterstrom, rapporteur of the Maketing and Planning (MP) group of the MoU (Memorandum of Understanding group, later to become the GSM Association (GSMA)) in 1989] had to say to solve the mystery: '[The dots symbolize] three [clients] in the home network and one roaming client.' There you go, an answer from the prime source!
  2. Anton A. Huurdeman, The Worldwide History of Telecommunications, John Wiley & Sons, 31 juli 2003, page 529
  3. "GSM Global system for Mobile Communications". 4G Americas. Archived frae the oreeginal on 8 February 2014. Retrieved 2014-03-22. Unknown parameter |deadurl= ignored (help)