SMS: Short Message Service
SMS is an acronym for Short Message Service. It is a communication protocol that allows to exchange text messages between mobile devices.
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You can send SMS by mobile phones, smart phones, computer systems with web, handheld devices etc. All telecommunication companies like Idea, Vodafone, Airtel, Aircel, BSNL etc. provide the facility of sending SMS.
SMS is the most widely used data application with an estimated 3.5 billion active users. It was originally designed as a part of GSM, but is now available on the CDMA phones also. The maximum length of an individual message goes up to 160 alpha-numeric 7 bits characters. (In the case of 5-bit mode, it supports 224 characters).
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Initial concept of SMS
Initial concept of SMS came in exist in early 1980s. It was developed in the Franco-German GSM cooperation in 1984 by Friedhelm Hillebrand and Bernard Ghillebiert. Then, the CEPT group GSM introduced a plan to include the exchange of text messages between mobile stations via message handling systems in use at that time.