ntry to the US would be as follows:

international access code + [1] (202) 939-xxxx, where

[1] is the country code for the US,

(202) is the area code for Washington, DC,

939 is the local exchange, and

xxxx is the local telephone number.

Telephone system: This entry includes a brief characterization of the
system with details on the domestic and international components. The
following terms and abbreviations are used throughout the entry:

Africa ONE - a fiber-optic submarine cable link encircling the
continent of Africa.

Arabsat - Arab Satellite Communications Organization (Riyadh, Saudi
Arabia).

Autodin - Automatic Digital Network (US Department of Defense).

CB - citizen's band mobile radio communications.

cellular telephone system - the telephones in this system are radio
transceivers, with each instrument having its own private radio
frequency and sufficient radiated power to reach the booster station
in its area (cell), from which the telephone signal is fed to a
regular telephone exchange.

Central American Microwave System - a trunk microwave radio relay
system that links the countries of Central America and Mexico with
each other.

coaxial cable - a multichannel communication cable consisting of a
central conducting wire, surrounded by and insulated from a
cylindrical conducting shell; a large number of telephone channels can
be made available within the insulated space by the use of a large
number of carrier frequencies.

Comsat - Communications Satellite Corporation (US).

DSN - Defense Switched Network (formerly Automatic Voice Network or
Autovon); basic general-purpose, switched voice network of the Defense
Communications System (US Department of Defense).

Eutelsat - European Telecommunications Satellite Organization (Paris).

fiber-optic cable - a multichannel communications cable using a thread
of optical glass fibers as a transmission medium in which the signal
(voice, video, etc.) is in the form of a coded pulse of light.

GSM - a global system for mobile (cellular) communications devised by
the Groupe Special Mobile of the pan-European standardization
organization, Conference Europeanne des Posts et Telecommunications
(CEPT) in 1982.

HF - high-frequency; any radio frequency in the 3,000- to 30,000-kHz
range.

Inmarsat - International Mobile Satellite Organization (London);
provider of global mobile satellite communications for commercial,
distress, and safety applica