In 1933 RCA Communications, New York introduced the first "telex" service.
Friedhelm Hillebrand conceptualised SMS in 1984 while working for Deutsche Telekom.
Advertisers and service providers use direct text marketing to send messages to mobile users about promotions, payment due dates, and other notifications instead of using postal mail, email, or voicemail.
The service is referred to by different colloquialisms depending on the region.
The GSM in the US had to use a frequency allocated for private communication services (PCS) – what the ITU frequency régime had blocked for DECT – Digital Enhanced Cordless Telecommunications – 1000-feet range picocell, but survived.
American Personal Communications (APC), the first GSM carrier in America, provided the first text-messaging service in the United States.
text messaging was the most widely used mobile data service, with 74% of all mobile phone users worldwide, or 2.4 billion out of 3.3 billion phone subscribers, at the end of 2007 being active users of the Short Message Service.Under SS7, it is a "state" with a 160 character data, coded in the ITU-T "T.56" text format, that has a "sequence lead in" to determine different language codes, and may have special character codes that permits, for example, sending simple graphs as text.This was part of ISDN (Integrated Services Digital Network) and since GSM is based on this, made its way to the mobile phone.GSM was allowed in the United States and the radio frequencies were blocked and awarded to US "Carriers" to use US technology.Hence there is no "development" in the US in mobile messaging service.