Carrier Of Record

	Carrier Of Record Carrier of Record (or COR) for telecommunications, refers to the entity that provides PSTN (Public Switched Telephone Network) service for an E.164 number. The exact definition of who and what is a COR is ultimately the responsibility of the relevant national regulatory authority. See also Outline of telecommunication The following outline is provided as an overview of and topical guide to telecommunication: Telecommunication – the transmission of signals over a distance for the purpose of communication. In modern times, this process almost always invo ... References Telephony {{telephony-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Telecommunications Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Public Switched Telephone Network The public switched telephone network (PSTN) provides Communications infrastructure, infrastructure and services for public Telecommunications, telecommunication. The PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators. These consist of telephone lines, fiber optic cables, microwave transmission links, Routing in cellular networks, cellular networks, communications satellites, and undersea telephone cables, all interconnected by switching centers which allow most telephones to communicate with each other. Originally a network of fixed-line Analog signal processing, analog telephone systems, the PSTN is now almost entirely digital in its core network and includes mobile and other networks, as well as fixed telephones. The technical operation of the PSTN adheres to the standards created by the ITU-T. These standards allow different networks in different countries to interconnect seamlessly. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	National Regulatory Authority A regulatory agency (regulatory body, regulator) or independent agency (independent regulatory agency) is a government authority that is responsible for exercising autonomous dominion over some area of human activity in a licensing and regulating capacity. These are customarily set up to strengthen safety and standards, and/or to protect consumers in markets where there is a lack of effective competition. Examples of regulatory agencies that enforce standards include the Food and Drug Administration in the United States and the Medicines and Healthcare products Regulatory Agency in the United Kingdom; and, in the case of economic regulation, the Office of Gas and Electricity Markets and the Telecom Regulatory Authority in India. Legislative basis Regulatory agencies are generally a part of the executive branch of the government and have statutory authority to perform their functions with oversight from the legislative branch. Their actions are often open to legal review. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Outline Of Telecommunication The following outline is provided as an overview of and topical guide to telecommunication: 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 other optical communications. Modes of telecommunication * E-mail * Fax * Instant messaging * Radio * Satellite * Telegraphy * Telephony * Television broadcasting * Videoconferencing * VoIP Types of telecommunication networks Telecommunications network * Computer networks ARPANET Ethernet Internet Wireless networks * Public switched telephone networks (PSTN) * Packet switched networks * Radio network Aspects of telecommunication transmission Telecommunication * Analog * Digital * Functional profile * Optics Telecommunication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]