out-of-band signaling
312600 hertz — 2600 Hz is the frequency in hertz (cycles per second) that AT T formerly put as a steady signal on any long distance telephone line that was not currently in use. Prior to widespread use of out of band signaling, AT T used in band signaling,… …
32Digital telephony — is the use of digital electronics in the provision of digital telephone services and systems. Since the 1960s a digital core network has almost entirely replaced the old analog system, and much of the access network has also been digitized.… …
33John Draper — For other people named John Draper, see John Draper (disambiguation). John T. Draper Captain Crunch, Crunch and Crunchman or Mr. Crunchtastic Born 1943 (1943) …
34Multi-gigabit transceiver — A Multi Gigabit Transceiver (MGT) is a SerDes capable of operating at serial bit rates above 1 Gigabit/second. MGTs are used increasingly for data communications because they can run over longer distances, use fewer wires, and thus have lower… …
35Malicious Caller Identification — (MCI), also called Malicious Call Trace (MCT) or Caller Activated Malicious Call Trace (CAMCT) is a facility which enables a phone call recipient to mark a phone call as malicious (i.e. harassing, threatening, obscene, etc.) The phone system will …
36Digital Signal 0 — (DS0) is a basic digital signaling rate of 64 kbit/s, corresponding to the capacity of one voice frequency equivalent channel.[1] The DS0 rate, and its equivalents E0 and J0, form the basis for the digital multiplex transmission hierarchy in… …
37Local insertion — In broadcasting, local insertion is the act or capability of a broadcast television station, radio station, or cable TV system to insert or replace part of a broadcast network feed with content unique to the local station or system. Most often… …
38CableCARD — A CableCARD is a special use PCMCIA (PC) card CableCARD is a special use PCMCIA (PC) card that allows consumers in the United States to view and record digital cable television channels on digital video recorders, personal computers and… …
39Phone fraud — Whether in the form of the consumer attempting to defraud the telephone company, the telephone company attempting to defraud the consumer, or a third party attempting to defraud either of them, fraud has been a part of the telephone system almost …
40Clock network — A clock network or clock system is a set of clocks designed to always show exactly the same time by communicating with each other. Clock networks usually include a central master clock kept in sync with an official time source, and one or more… …
