Analog Display Service Interface

What Does Analog Display Service Interface Mean?

Analog display service interface (ADSI) is a telephony standard widely used in plain old telephone service. It transmits information to be displayed on display-based telephones connected to an analog loop start line. In order for this to work, the telephone must be an ADSI-compliant device.

Advertisements

Techopedia Explains Analog Display Service Interface

ADSI includes complex standard sets designed exclusively for the telecom industry. These are widely used in private branch exchange (PBX) or plain old telephone service to permit data transmissions to be displayed on display-based telephones. This technology was introduced by Bellcore and later rolled out to regional Bell operating companies in April 1995. It was then marketed to streamline available custom calling options using screen-based telephones, thereby providing small business telephone subscribers a PBX-like functionality at home for low cost.

This technology was introduced before the advancement of Voice over Internet Protocol (VoIP)-based telephony technology and personal communications services. It was slated to work with other services such as enhanced directory assistance, movie theater ticket sales and telephone banking.

Advertisements

Related Terms

Margaret Rouse

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.