Tech moves fast! Stay ahead of the curve with Techopedia!
Join nearly 200,000 subscribers who receive actionable tech insights from Techopedia.
Short Message Service (SMS) is the most basic communications technology for mobile data transfer and is characterized by the exchange of short alphanumeric text messages between digital line and mobile devices. SMS messaging's key influential factor is affordability.
SMS messages hold up to 140 bytes (1,120 bits) of data, which allows a 160-character alphanumeric message in the default 7-bit alphabet or a 70-character message in a non-Latin language, such as Chinese.
SMS is also known as text messaging.
SMS is supported by all Global System for Mobile Communications (GSM) mobile phones and is also available on third generation (3G) wireless networks.
SMS messages are also sent via Web-based browser applications, instant message (IM) applications and Voice over Internet Protocol (VoIP) applications, such as Skype. An SMS message is sent from a device to a Short Message Service Center (SMSC), which, in turn, communicates with mobile networks to determine the subscriber's location. Then, the message is forwarded as a small data packet to the destination device. Subsequent messages sent by the original source device undergo the same process, also known as store and forward.
SMS streamlines communication on many levels, as follows:
SMS adoption continues to expand globally since the first SMS message was sent in 1992 via Vodafone's GSM network. Over 2.4 billion users, or nearly 75 percent of mobile subscribers, use SMS.
The SMS boom generated sweeping commercial market success. According to the International Telecommunications Union (ITU), the SMS industry achieved a global worth of over $81 billion as of 2006. In 2008, approximately four trillion SMS messages were transmitted worldwide.