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Country codes are short alphabetic or numeric geographical codes (geocodes) developed to represent countries and dependent areas, for use in data processing and communications. Several different systems have been developed to do this. The term country code frequently refers to ISO 3166-1 alpha-2 or international dialing codes, the E.164 country calling codes.
The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications and Information Communication Technology such as X.509 for cybersecurity, Y.3172 and Y.3173 for machine learning, and H.264/MPEG-4 AVC for video compression, between its Member States, Private Sector Members, and Academia Members. ITU-T is one of the three Sectors of the International Telecommunication Union (ITU).
The International Telecommunication Union is a specialized agency of the United Nations responsible for all matters related to information and communication technologies. It was established in 17 May 1865 as the International Telegraph Union, making it among the oldest international organizations still in operation.
Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF radio communications. ALE is a feature in an HF communications radio transceiver system that enables the radio station to make contact, or initiate a circuit, between itself and another HF radio station or network of stations. The purpose is to provide a reliable rapid method of calling and connecting during constantly changing HF ionospheric propagation, reception interference, and shared spectrum use of busy or congested HF channels.
X.25 is an ITU-T standard protocol suite for packet-switched data communication in wide area networks (WAN). It was originally defined by the International Telegraph and Telephone Consultative Committee in a series of drafts and finalized in a publication known as The Orange Book in 1976.
E.164 is an international standard, titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks.
The International Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, NATO spelling alphabet, ICAO phonetic alphabet or ICAO spelling alphabet, is the most widely used radiotelephone spelling alphabet. The ITU phonetic alphabet and figure code is a rarely used variant that differs in the code words for digits.
Communications in Barbados refers to the telephony, internet, postal, radio, and television systems of Barbados. Barbados has long been an informational and communications centre in the Caribbean region. Electricity coverage throughout Barbados is good and reliable. Usage is high and provided by a service monopoly, Barbados Light & Power Company Ltd..
A telecommunications device for the deaf (TDD) is a teleprinter, an electronic device for text communication over a telephone line, that is designed for use by persons with hearing or speech difficulties. Other names for the device include teletypewriter (TTY), textphone, and minicom.
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.
MSISDN is a number uniquely identifying a subscription in a Global System for Mobile communications or a Universal Mobile Telecommunications System mobile network. It is the mapping of the telephone number to the subscriber identity module in a mobile or cellular phone. This abbreviation has several interpretations, the most common one being "Mobile Station International Subscriber Directory Number".
A Maritime Mobile Service Identity (MMSI) is a series of nine digits which are sent in digital form over a radio frequency channel in order to uniquely identify ship stations, ship earth stations, coast stations, coast earth stations, and group calls. These identities are formed in such a way that the identity or part thereof can be used by telephone and telex subscribers connected to the general telecommunications network to call ships automatically.
TDR may refer to:
The ITU-T Recommendation E.212 defines mobile country codes (MCC) as well as mobile network codes (MNC).
Telephone numbers in the Philippines follow an open telephone numbering plan and an open dial plan. Both plans are regulated by the National Telecommunications Commission, an attached agency under the Department of Information and Communications Technology (DICT).
Telephone numbers in Vatican City are integrated into the Italian telephone numbering plan: ITU-T has assigned country code +379 to Vatican City, but this is not in use.
The dialing code for Kosovo is +383. It was assigned by the ITU following an agreement between the authorities in the capitals of Pristina and Belgrade in an EU-led dialog between Kosovo and Serbia. Its dialing code was initially expected to become effective on January 1, 2015 but it was postponed to the finalization of the agreement in late August 2015. With the agreement of the Administration of the Republic of Serbia, the Director of TSB has assigned the international codes to Kosovo. Kosovo is represented in ITU as Kosovo* which the designation is without prejudice to positions on status, and is in line with UNSCR 1244 and the ICJ Opinion on the Kosovo declaration of independence. The EU has handed over the temporary authorisation for mobile and the licence for fixed telephony services to be undertaken in Kosovo issued by the Kosovo Telecommunication Regulatory Authority to mts d.o.o.
Call signs in Barbados include a three letter country code, and a series of letters and numbers.
References
- ↑ "List of ITU-T Recommendation E.164 assigned country codes 15.IV.2009" (PDF). 2009-04-15. Retrieved 2010-10-20.
