A call placed within a private branch exchange (PBX) or local switchboard, i.e., not through a central office in a public switched network. Synonym inside call. [From Weik '89]

In a computer, all of the storage spaces that are accessible by a processor without the use of the computer input-output channels.
Note: Internal memory usually includes several types of storage, such as main storage, cache memory, and special registers, all of which can be directly accessed by the processor. Synonym internal storage.

A photoconductive or photovoltaic effect.

Synonym internal memory.

The time scale established by the Bureau International des Poids et Mesures (BIPM--International Bureau of Weights and Measures in Sevres, France) on the basis of atomic clock data supplied by cooperating institutions.

A carrier authorized to provide telecommunications services outside World Zone 1 using the international dialing plan; however, the carrier has the option of providing service to World Zone 1 points outside the forty-eight contiguous states of the United States. [T1.104-1991]

The direct dialing of an international call from a customer in the NANP area to a customer outside the NANP area. The dialing format for an IDDD call is an international prefix followed by the international (E.164) number, which typically consists of a country code and a national number.

A fixed service carried on for the purpose of communicating between transmitting stations, receiving stations, message centers or control points in the international fixed public radiocommunication service. [47CFR]

A fixed service, the stations of which are open to public correspondence and which, in general, is intended to provide radiocommunication between any one of the contiguous 48 states (including the District of Columbia) and the state of Alaska, or the State of Hawaii, or any U. S. possession or any foreign point; or between any U. S. possession and… (Read More →)

See Radio Regulations Board.