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Digital Multiplex System (e.g. DMS-100) Can DNIS: Dialed Number Identification System: US DSL: Digital subscriber line DTMF: dual-tone multi-frequency FDM: Frequency-division multiplexing GPRS: General Packet Radio Service GSM: Global system for mobile communications GST: Ground Start Trunk: US IDDD: International Direct Distance Dialing: US IDF
Telecommunication – the transmission of signals over a distance for the purpose of communication. In modern times, this process almost always involves the use of electromagnetic waves by transmitters and receivers, but in earlier years it also involved the use of drums and visual signals such as smoke , fire , beacons , semaphore lines and ...
This is a List of telecommunications terminology and acronyms which ... Free-space optical communication; ... Group alerting and dispatching system; H. Hop; Horn;
The Bluetooth system, for example, uses phase-shift keying to exchange information between various devices. [44] [45] In addition, there are combinations of phase-shift keying and amplitude-shift keying which is called (in the jargon of the field) quadrature amplitude modulation (QAM) that are used in high-capacity digital radio communication ...
Media related to Internet terminology at Wikimedia Commons; FOLDOC — Free On-Line Dictionary of Computing; User-contributed dictionary on Internet slang; About-the-web Glossary of Internet Terms Archived 2016-09-09 at the Wayback Machine; SlangLang – Online dictionary for slang words
A signaling protocol is a type of communications protocol for encapsulating the signaling between communication endpoints and switching systems to establish or terminate a connection and to identify the state of connection. The following is a list of signaling protocols: ALOHA; Digital Subscriber System No. 1 (EDSS1) Dual-tone multi-frequency ...
An optical communication system is any form of communications system that uses light as the transmission medium. Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.
Techniques known since the 1940s and used in military communication systems since the 1950s "spread" a radio signal over a wide frequency range several magnitudes higher than minimum requirement. The core principle of spread spectrum is the use of noise-like carrier waves, and, as the name implies, bandwidths much wider than that required for ...