A.k.a. an addressable call endpoint, is a device that can originate or, receive a call in a telephone network. In VoIP, addressable call endpoints can be categorized as either voice-network dial peers or POTS (plain old telephone service) dial peers. 

A feature of voice over IP (VoIP) systems in which the device at the originating router attempts to find an alternative addressable call endpoint if it cannot establish a connection to the intended endpoint. 

A telephone connection in a system of many lines shared by many users. A dial-up connection is established and maintained for a limited time duration. The alternative is a dedicated connection, which is continuously in place. 

A jquery attribute that creates a floating window that containing a title bar and a content area. The dialog window can be moved, resized and closed with the 'x' icon by default.

A type of backup that copies all the data that's been changed since the last full backup. The size of a differential backup grows throughout the week and becomes progressively larger until the next full backup. 

A protocol for specifying and controlling network traffic by class so that certain types of traffic get precedence - for example, voice traffic, which requires a relatively uninterrupted flow of data, might get precedence over other kinds of traffic. 

A.k.a Exponential key exchange, is a method of digital encryption that uses numbers raised to specific powers to produce decryption keys on the basis of components that are never directly transmitted.

Digipak is a patented style of CD, DVD or BD packaging, they typically consist of a gatefold (book-style) paperboard or card stock outer binding, with one or more plastic trays capable of holding a CD or DVD attached to the inside.

Digital describes electronic technology that generates, stores, and processes data in terms of two states: positive and non-positive. Positive is expressed or represented by the number 1 and non-positive by the number 0. 

A.k.a digital radio and high-definition radio, is audio broadcasting in which analog audio is converted into a digital signal and transmitted on an assigned channel in the AM or FM frequency range. 

A standard medium and technology for the digital recording of audio on tape at a professional level of quality.   

A computer that is specially equipped with a high-quality sound card and programming for editing and processing digital audio at a professional level. DAW can range from a simple two-channel editor to a complete digital recording studio suite.

A digital camera records and stores photographic images in digital form. Many current models are also able to capture sound or video, in addition to still images. 

A digital certificate is an electronic "credit card" that establishes your credentials when doing business or other transactions on the Web. It is issued by a certification authority (CA). 

Data transmission, digital transmission, or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibres, wireless communication channels, storage media and computer buses. The data are represented as an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal.

An approach to compressing information that compresses the entire transmission rather than just all or some part of the content. It can be applied on both wired and wireless media.