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Federal Standard 1037C, titled Telecommunications: Glossary of Telecommunication Terms, is a United States Federal Standard issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended.
Direct distance dialing (DDD) is a telecommunications service feature in North America by which a caller may, without operator assistance, call any other user outside the local calling area. Direct dialing by subscribers typically requires extra digits to be dialed as prefixes to the directory telephone number of the destination. International Direct Distance Dialing (IDDD) extends the system beyond the geographic boundaries of the North American Numbering Plan (NANP).
In telecommunications, a disengagement originator is the user or execution unit that initiates a disengagement attempt. The disengagement originator may be the originating user, the destination user, or the communications system. The communications system may deliberately originate the disengagement because of preemption, or inadvertently due to system malfunction.
In telecommunications, an interface standard is a standard that describes one or more functional characteristics or physical characteristics necessary to allow the exchange of information between two or more systems or pieces of equipment. Communications protocols are an example.
In telecommunications, a one-way trunk is a trunk between two switching centers, over which traffic may be originated from one preassigned location only.
Title 47 CFR Part 68 is a section of the Code of Federal Regulations of the United States that regulates the direct electrical connection of telecommunications equipment and customer premises wiring with the public switched telephone network, certain private line services, and connection of private branch exchange (PBX) equipment to certain telecommunication interfaces.
In telecommunications, remote call forwarding is a service feature that allows incoming calls to be forwarded to a remote call forwarding number, such as a cell phone or another office location, and is designated by the call receiver.
In telecommunications, signaling is the use of signals for controlling communications. This may constitute an information exchange concerning the establishment and control of a telecommunication circuit and the management of the network.
In telecommunications, a toll switching trunk or toll connecting trunk is a trunk connecting an end office to a toll center as the first stage of concentration for intertoll or long-distance traffic.
Subscriber trunk dialling (STD), also known as subscriber toll dialing, is a telephone numbering plan feature and telecommunications technology in the United Kingdom and various Commonwealth countries for the dialling of trunk calls by telephone subscribers without the assistance of switchboard operators.
In telecommunications, trunking is a technology for providing network access to multiple clients simultaneously by sharing a set of circuits, carriers, channels, or frequencies, instead of providing individual circuits or channels for each client. This is reminiscent to the structure of a tree with one trunk and many branches. Trunking in telecommunication originated in telegraphy, and later in telephone systems where a trunk line is a communications channel between telephone exchanges.
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of the administrative regions of the public switched telephone network (PSTN) and in private telephone networks.
In telecommunications, a long-distance call (U.S.) or trunk call is a telephone call made to a location outside a defined local calling area. Long-distance calls are typically charged a higher billing rate than local calls. The term is not necessarily synonymous with placing calls to another telephone area code.
The Deutsche Bundespost was a German state-run postal service and telecommunications business founded in 1947. It was initially the second largest federal employer during its time. After staff reductions in the 1980s, the staff was reduced to roughly 543,200 employees in 1985. The corporation was dissolved in 1995 under two rounds of postal reforms that took place in the German Post Office in 1989 and 1995, respectively. Following the reforms, the former Deutsche Bundespost was broken into three publicly traded corporations: Deutsche Post AG, Deutsche Telekom, and Deutsche Postbank AG.
The Center for Information Technology (CIT) is one of the 27 institutes and centers that compose the National Institutes of Health (NIH), an agency of the U.S. Department of Health and Human Services (HHS), a cabinet-level department of the Executive Branch of the United States Federal Government. Originating in 1954 as a central processing facility in the NIH Office of the Director, the Division of Computer Research and Technology was established in 1964, merging in 1998 with the NIH Office of the CIO and the NIH Office of Research Services Telecommunications Branch to form a new organization, the CIT.
The Number One Crossbar Switching System (1XB), was the primary technology for urban telephone exchanges served by the Bell System in the mid-20th century. Its switch fabric used the electromechanical crossbar switch to implement the topology of the panel switching system of the 1920s. The first No. 1 Crossbar was installed in the PResident-2 central office at Troy Avenue in Brooklyn, New York which became operational in February 1938.
Ringing is a telecommunication signal that causes a bell or other device to alert a telephone subscriber to an incoming telephone call. Historically, this entailed sending a high-voltage alternating current over the telephone line to a customer station which contained an electromagnetic bell. It is therefore also commonly referred to as power ringing, to distinguish it from another signal, audible ringing, or ringing tone, which is sent to the originating caller to indicate that the destination telephone is in fact ringing.
A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large enterprise telecommunications systems. It facilitates the interconnection of telephone subscriber lines or digital system virtual circuits, enabling telephone calls between subscribers.
A call detail record (CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions that passes through that facility or device. The record contains various attributes of the call, such as time, duration, completion status, source number, and destination number. It is the automated equivalent of the paper toll tickets that were written and timed by operators for long-distance calls in a manual telephone exchange.
Common Language Information Services encompasses several products that are in general use by the global telecommunications industry through license agreements. Common Language products combine numerics and mnemonics to establish naming conventions that telecommunication companies use to exchange critical information via Operations Support Systems and other interface mechanisms.
References
- ↑ Administration, N.T.I. (1997). Telecommunications: Glossary of Telecommunications Terms. Federal Standard. Government Institutes. p. 19–PA24. ISBN 978-1-4617-3232-7 . Retrieved 10 July 2018.
This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 22 January 2022. (in support of MIL-STD-188).
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