SMS

SMS definition - telecom
  1. Service Management System. In the advanced intelligent network (AIN) architecture, a network control interface that enables the service provider to vary the parameters of the AIN services. Under certain circumstances, the end user organization may be provided access to a partition of the SMS. See also AIN.
  2. Short Message Service. A text messaging service initially defined in the standards for Global System for Mobile Communications (GSM) and now available on most digital cellular telephone networks and some paging systems. SMS was originally designed to support one-way information transfer for applications such as weather reports, sports scores, traffic reports, and stock quotes, as well as short e-mail-like messages, which may be entered through the service provider's website. Most service providers also allow cellular users to receive and respond to e-mail messages, using the cell phone keypad for message input. SMS is a store-and-forward messaging technology that generally includes a chat option that operates in near-realtime mode, much like instant messaging (IM), and many IM systems support mobile communications via interfaces to SMS systems. SMS messages use the same Simple Mail Transfer Protocol (SMTP) specified in the TCP/IP protocol suite for Internet e-mail. SMS messages between the mobile phone, or other device, and the centralized message center, known as a Short Message Service Center (SMSC), are in packet format. In packet-based Code Division Multiple Access (CDMA) cellular networks, SMS packet data transport is relatively straightforward. In Time Division Multiple Access (TDMA) and GSM networks, SMS packet transport is over the signaling channel via Signaling System 7 (SS7). Note: The SS7 protocol limits the packet size to 140 octets, which translates to 160 ASCII 7-bit characters (140

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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