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Area Code 500
In telecommunication, a personal communications service is defined by the Alliance for Telecommunications Industry Solutions (ATIS) as "a set of capabilities that allows some combination of personal mobility, terminal mobility, and service profile management". Personal communications services use a special non-geographic area code of the format ''5XX'' for assigning telephone numbers for service instances. The designation of the 5XX area code format was authorized by the United States Federal Communications Commission, and introduced into the North American Numbering Plan in 1995. United States In 1995, AT&T introduced a "follow-me" service under the brand name of ''AT&T True Connections'' using area code 500. It was designed to replace the '' AT&T EasyReach 700'' service. Other local exchange carriers and interexchange carriers introduced similar competitive services. AT&T True Connections service was not well received. Companies, hotels, and others with PBX equipment continu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Numbering Plan
The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international calling code ''1''. Some North American countries, most notably Mexico, do not participate in the NANP. The NANP was originally devised in the 1940s by the AT&T Corporation, American Telephone and Telegraph Company (AT&T) for the Bell System and the independent telephone operators in North America. The goal was to unify the diverse local numbering plans that had been established in the preceding decades and prepare the continent for direct-dialing of calls by customers without the involvement of telephone operators. AT&T continued to administer the numbering plan until the breakup of the Bell System, when administration was delegated to the North American Numbering Plan Administrator (NANPA), a service that has been procured from the private sect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interexchange Carrier
An interexchange carrier (IXC), in U.S. legal and regulatory terminology, is a type of telecommunication company, commonly called a long-distance telephone company. It is defined as any carrier that provides services across multiple local access and transport areas (interLATA). Calls made on telephone circuits within the local geographic area covered by one local network are handled only by that intraLATA carrier, commonly called a local telephone exchange carrier. Local calls are usually defined by connections made without additional charge whether the connected call is in the same LATA or connects to another LATA with no charge. IntraLATA usually refers to rated or toll calls between LATA within state boundaries, as opposed to interstate, or calls between LATAs in different states. Call handling An interexchange carrier handles traffic between telephone exchanges. Telephone exchanges are identified in the United States by the three-digit area code (NPA) and the central office ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telcordia Technologies
iconectiv is a supplier of network planning and network management services to telecommunications providers. Known as Bellcore after its establishment in the United States in 1983 as part of the break-up of the Bell System, the company's name changed to Telcordia Technologies after a change of ownership in 1996. The business was acquired by Ericsson in 2012, then restructured and rebranded as iconectiv in 2013. A major architect of the United States telecommunications system, the company pioneered many services, including caller ID, call waiting, mobile number portability and toll-free telephone number (800) service. It also pioneered the prepaid charging system and the Intelligent Network. Headquartered in Bridgewater, New Jersey (U.S.), iconectiv provides network and operations management, numbering, registry and fraud prevention services for the global telecommunications industry. It provides numbering services in more than a dozen countries, including serving as the Local ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bellcore
iconectiv is a supplier of network planning and network management services to telecommunications providers. Known as Bellcore after its establishment in the United States in 1983 as part of the break-up of the Bell System, the company's name changed to Telcordia Technologies after a change of ownership in 1996. The business was acquired by Ericsson in 2012, then restructured and rebranded as iconectiv in 2013. A major architect of the United States telecommunications system, the company pioneered many services, including caller ID, call waiting, mobile number portability and toll-free telephone number (800) service. It also pioneered the prepaid charging system and the Intelligent Network. Headquartered in Bridgewater, New Jersey (U.S.), iconectiv provides network and operations management, numbering, registry and fraud prevention services for the global telecommunications industry. It provides numbering services in more than a dozen countries, including serving as the Local ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Code 900
__NOTOC__ Year 900 ( CM) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. Events By place Abbasid Caliphate * Spring – Forces under the Transoxianian emir Isma'il ibn Ahmad are victorious at Balkh (Northern Afghanistan) over Amr ibn al-Layth; the latter is captured and sent to Caliph Al-Mu'tadid in Baghdad. The Samanid Dynasty rules over Khorasan, as well as Transoxiana. A few months later, the Samanids conquer the Zaydid emirate of Tabaristan. This victory marks the beginning of the dispersion of the local Shi'ites by the new Sunni power. * Arab–Byzantine wars: Emperor Leo VI ("the Wise") begins an offensive against the Abbasid army in Cilicia, Upper Mesopotamia and Armenia. He also continues the war against the Muslims in Sicily and southern Italy. * The future founder of the Fatimid Caliphate, Abdallah al-Mahdi and his family migrate to North Africa. They claim to be descendants of Fatimah, the daughter of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll-free Telephone Numbers In The North American Numbering Plan
In the United States of America, Canada, and other countries participating in the North American Numbering Plan, a toll-free telephone number has one of the area codes 800, 833, 844, 855, 866, 877, and 888. Area code 822 is expected to be used in the future, followed by 880 through 887, then 889. However, 811 is reserved as a three-digit number for various other purposes. In addition, 899 is reserved as a member of the series ''x9x'' for future numbering plan expansion. Calls to these numbers are free to the caller if dialed from land-line phones, but may incur mobile airtime charges for cellular phones. History Most of the United States and all of Canada uses a flat-rate structure for local calls, which incur no per-call cost to residential subscribers. Long distance calls had higher prices. As regulators in North America had long allowed long-distance calling to be priced artificially high in return for artificially low rates for local service, subscribers tended to make toll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of North American Numbering Plan Area Codes
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (''NPA codes'', or ''area codes''), consisting of three digits that are prefixed to each local telephone number having seven digits. Numbering plan areas may be assigned multiple area codes to provide adequate numbering resources, in which case the local numbering plan is called an overlay. Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits ''0'' and ''1'' as the leading digit, which also applies for central office codes.AT&T (1955) ''Notes on Distance Dialing'' NPAs with ''9'' as the second digit are reserved for future format expansion. Area codes with two identical trailing digits are considered easily recognizable codes (ERC), which are reserved, or used for systemwide services. Area codes in numerical order 200–299 300–399 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Radio-television And Telecommunications Commission
The Canadian Radio-television and Telecommunications Commission (CRTC; french: Conseil de la radiodiffusion et des télécommunications canadiennes, links=) is a public organization in Canada with mandate as a regulatory agency for broadcasting and telecommunications. It was created in 1976 when it took over responsibility for regulating telecommunication carriers. Prior to 1976, it was known as the Canadian Radio and Television Commission, which was established in 1968 by the Parliament of Canada to replace the Board of Broadcast Governors. Its headquarters is located in the Central Building (Édifice central) of Les Terrasses de la Chaudière in Gatineau, Quebec. History The CRTC was originally known as the Canadian Radio-Television Commission. In 1976, jurisdiction over telecommunications services, most of which were then delivered by monopoly common carriers (for example, telephone companies), was transferred to it from the Canadian Transport Commission although the ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tariff
A tariff is a tax imposed by the government of a country or by a supranational union on imports or exports of goods. Besides being a source of revenue for the government, import duties can also be a form of regulation of foreign trade and policy that taxes foreign products to encourage or safeguard domestic industry. ''Protective tariffs'' are among the most widely used instruments of protectionism, along with import quotas and export quotas and other non-tariff barriers to trade. Tariffs can be fixed (a constant sum per unit of imported goods or a percentage of the price) or variable (the amount varies according to the price). Taxing imports means people are less likely to buy them as they become more expensive. The intention is that they buy local products instead, boosting their country's economy. Tariffs therefore provide an incentive to develop production and replace imports with domestic products. Tariffs are meant to reduce pressure from foreign competition and reduce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunication
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 d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Code 700
Area code 700 of the North American Numbering Plan is a service access code (SAC) implemented by interexchange carriers. It is reserved for carrier-specific number assignments to special services or destinations. It was introduced in 1983 for providing customized services in anticipation of the introduction of Long-distance calling, long-distance competition in the United States, but this usage has been deprecated. The area code has found renewed usage for custom calling services by voice over IP service providers and in software-defined voice networks. History Area code 700 was introduced into the North American Numbering Plan (NANP) in 1983, after the breakup of the Bell System monopoly, as a method of telephone number assignment by interexchange carriers to implement new services rapidly. The area code does not designate a geographical numbering plan area (NPA), but destinations for this NPA code are exclusive to each interexchange carrier. A local exchange carrier routes call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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