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Glite Dictionary
📞 A digital network 🔌 Using digital network
ISDN

ISDN

1 7.0
A digital phone network that sends voice and data over normal phone lines
  • noun
  • /ˈaɪˌɛsˈdiːˈɛn/
  • Archaic
translation icon : ISDN
  • With ISDN, you can achieve faster internet speeds over standard telephone lines compared to traditional dial-up.
  • ISDN line
  • ISDN modem
  • ISDN service

Examples

  • Vanderbilt has a 24/7 TV and radio studio with a dedicated fiber optic line and ISDN line.

    Blog text (28)

  • Schools with ISDN connectivity or the emerging IP video conferencing technology will be able to freely interact with existing NYClassNet schools.

    Academic text (2001)

  • Before this, it was these ISDN lines which are point to point and they were very, very costly as well.

  • UCR also has ISDN for radio interviews.

    Blog text (3)

  • Note: The University of Oregon is equipped with an on-campus television studio with satellite uplink capacity and a radio studio with an ISDN phone line for broadcast-quality radio.

    Blog text (31)

  • Each individual workspace in the classrooms is equipped with a flat-screen Dell computer, an ISDN line for desktop compressed video, modem access for all stations, and large overhead hanging monitors.

    Academic text (2003)

  • The Integrated Services Digital Network, or ISDN, allows for the simultaneous transmission of voice and data over standard telephone lines.

  • Many businesses are upgrading to ISDN to improve their communication efficiency and reduce costs.

How Fast

fiber-optic
  • Specialized
12 4.9
broadband
  • Texting
45 2.8
DSL
  • Specialized
14 3.6
ISDN
  • Archaic
1 7.0
dial-up
  • Archaic
1 3.5

Surface Forms

ISDN singular
ISDNs plural

Morphology

ISDN = integrated + services + digital + network (opaque) = I + S + D + N

ISDN is an initialism formed from the initial letters of a technical phrase; its form is not interpretable via ordinary English morphemes.

Etymology

The word ISDN stands for Integrated Services Digital Network. Think of Integrated as 'joined together', Digital as 'in numbers', and Network as 'a system of lines', so ISDN is a joined system that sends 'voice and data' over ordinary telephone lines.