The definition that Friedhelm Hillebrand and Bernard Ghillebaert brought into GSM called for the provision of a message transmission service of alphanumeric messages to mobile users "with acknowledgement capabilities".
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Silent SMS [ ] In Germany in 2010 almost half a million "silent SMS" messages were sent by the federal police, customs and the secret service "" offices for protection of the constitution.
Frage nie, wie sehr ich dich mag… es bedeutet dir nichts! Edith Helminger — Alle Rechte vorbehalten! Unsere Liebe ist wie ein Tattoo: Sie geht tief unter die Haut, versetzt mir tausend Nadelstiche ins Herz.
According to , an engineer at Nokia at the time, the , which was released in January 1994, was the first mobile phone to support composing SMSes easily.