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Prior to standardized CAMEL control of the Short Message Service, IN control relied on switch vendor specific extensions to the Intelligent Network Application Part (INAP) of SS7.
was sent over the Vodafone GSM network in the United Kingdom on 3 December 1992, from Neil Papworth of Sema Group (now Mavenir Systems) using a personal computer to Richard Jarvis of Vodafone using an Orbitel 901 handset.
According to one market research report, as of 2014, the global SMS messaging business was estimated to be worth over 0 billion, accounting for almost 50 percent of all the revenue generated by mobile messaging.
Adding text messaging functionality to mobile devices began in the early 1980s.
The last three words transformed SMS into something much more useful than the prevailing messaging paging that some in GSM might have had in mind.
The material elaborated in GSM and its WP1 subgroup was handed over in Spring 1987 to a new GSM body called IDEG (the Implementation of Data and Telematic Services Experts Group), which had its kickoff in May 1987 under the chairmanship of Friedhelm Hillebrand (German Telecom).
Through these organizations the technology was made freely available to the whole world.
WP4 created a Drafting Group Message Handling (DGMH), which was responsible for the specification of SMS.
The first action plan of the CEPT Group GSM was approved in December 1982, requesting that, "The services and facilities offered in the public switched telephone networks and public data networks ...
should be available in the mobile system." The GSM is optimized for telephony, since this was identified as its main application.
Besides the completion of the main specification GSM 03.40, the detailed protocol specifications on the system interfaces also needed to be completed.
CAMEL allows the gsm SCP to block the submission (MO) or delivery (MT) of Short Messages, route messages to destinations other than that specified by the user, and perform real-time billing for the use of the service.