[18] The enter paperwork on SMS had been ready by Friedhelm Hillebrand of Deutsche Telekom, with contributions from Bernard Ghillebaert of France Télécom. The definition that Friedhelm Hillebrand and Bernard Ghillebaert introduced into GSM identified as to the provision of the concept transmission services of alphanumeric messages to cell users https://text-messaging-platform42975.celticwiki.com/792094/the_definitive_guide_to_campaigns