Synonym central office.

See audio frequency, voice frequency.

The unique network address that is assigned to a telephone user, i.e., subscriber, for routing telephone calls.

A DNS-based architecture in which an E.164 number (i.e., as defined by the ITU) can be expressed as a fully qualified domain name.

Synonym sidetone.

1. The branch of science devoted to the transmission, reception, and reproduction of sounds, such as speech and tones that represent digits for signaling.
Note 1: Transmission may be via various media, such as wire, optical fibers, or radio.
Note 2: Analog representations of sounds may be digitized, transmitted, and, on reception, converted back to analog form.
Note 3: "Telephony"… (Read More →)

Pertaining to pictures transmitted via a telecommunications system.

A teletypewriter that can only receive data and does not have a keyboard for transmission.

The combining of telecommunications and computer operations interacting in the automatic processing, reception, and transmission of data and/or information. [JP 1-02]
Note: Teleprocessing includes human-machine interface equipment.

See teletraining.