Editing GSM (section)

=== First networks ===
[[File:GSM-Telefone-1991.jpg|thumb|alt=Prototype GSM phones from 1991|Prototype GSM phones]]
In parallel [[France]] and [[Germany]] signed a joint development agreement in 1984 and were joined by [[Italy]] and the [[United Kingdom|UK]] in 1986. In 1986, the [[European Commission]] proposed reserving the 900&nbsp;MHz spectrum band for GSM. It was long believed that the former [[Finland|Finnish]] prime minister [[Harri Holkeri]] made the world's first GSM call on 1 July 1991, calling [[Kaarina Suonio]] (deputy mayor of the city of [[Tampere]]) using a network built by [[Nokia Siemens Networks|Nokia and Siemens]] and [[mobile network operator|operated]] by [[Radiolinja]].<ref>{{cite web |url= http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=86&t=586&a=5126 |title= Maailman ensimmäinen GSM-puhelu |trans-title= World's first GSM call |date= 22 February 2008 |work= yle.fi |publisher= Yelisradio OY |archiveurl= https://web.archive.org/web/20110706064231/http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=86&t=586&a=5126 |archivedate= 6 July 2011 |accessdate= 5 May 2011 |quote= Harri Holkeri made the first call on the Radiolinja (Elisa's subsidiary) network, at the opening ceremony in Helsinki on 07.01.1991. |url-status= dead}}</ref> In 2021 a former Nokia engineer [[Pekka Lonka]] revealed to {{lang|fi|[[Helsingin Sanomat]]}} making a test call just a couple of hours earlier. "World's first GSM call was actually made by me. I called Marjo Jousinen, in Salo.", Lonka informed.<ref>{{cite web |url= https://www.hs.fi/visio/art-2000008075194.html |title= Ensimmäinen gsm-puhelu soitettiin 30 vuotta sitten |trans-title= World's first GSM call was made 30 years ago |date= 1 July 2021 |work= hs.fi |publisher= Helsingin Sanomat |accessdate= 11 October 2022 |quote= Tasan 30 vuotta sitten Esplanadin puistossa tehtiin historiaa. Kulisseissa vaikutti Nokian nykyinen toimitusjohtaja Pekka Lundmark. Hän uskoo, että seuraava murros kestää ainakin 10 vuotta. }}</ref> The following year saw the sending of the first [[short messaging service]] (SMS or "text message") message, and [[Vodafone UK]] and Telecom Finland signed the first international [[roaming]] agreement.