SAR -- Specific Absorption Rate A test metric for RF exposure.
simple IP -- The standard method of allocating IP addresses to mobile units as they register with network serving stations (handoff). This is typically a dynamic IP addressing mechanism managed through DHCP. See also Mobile IP.
SMS -- Short message services A feature that allows users of a wireless device on a wireless network to receive or transmit short electronic alphanumeric messages (up to 160 characters, depending on the service provider).
TCP -- Transmission Control Protocol The common underlying communication protocol used on the Internet. A connection handshake establishes a point to point logical connection. In contrast to UDP, TCP ensures both ends of the connection are present and active on the network. TCP ensures delivery of datagrams.
TIA -- Telecommunications Industry Association A standards setting trade organization, whose members provide communications and information technology products, systems, distribution services and professional services in the United States and around the world. Consult www.tiaonline.org.
WAN -- Wide Area Network A computer network that uses highspeed packet switched lines to serve a large geographic area. Contrast with LAN.
Watcher™ --A suite of programs that run on a Windows-based computer. This program allows the user to configure the Sierra Wireless modem for communications, and monitor various modem parameters. It is not compatible with other vendors’ modems.
WWAN -- Wireless Wide Area Network A wireless computer data network that may extend over a large geographical area.
WWW-- World Wide Web An Internet-based, hypertext, graphical network created by CERN researchers in Switzerland. For more information about CERN, visit their site at www.w3.org.
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