Definitions for isdn
isdn

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1. ISDN

   Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the digitalised circuits of the public switched telephone network. Work on the standard began in 1980 at Bell Labs and was formally standardized in 1988 in the CCITT "Red Book". By the time the standard was released, newer networking systems with much greater speeds were available, and ISDN saw relatively little uptake in the wider market. One estimate suggests ISDN use peaked at a worldwide total of 25 million subscribers at a time when 1.3 billion analog lines were in use. ISDN has largely been replaced with digital subscriber line (DSL) systems of much higher performance. Prior to ISDN, the telephone system consisted of digital links like T1/E1 on the long-distance lines between telephone company offices and analog signals on copper telephone wires to the customers, the "last mile". At the time, the network was viewed as a way to transport voice, with some special services available for data using additional equipment like modems or by providing a T1 on the customer's location. What became ISDN started as an effort to digitize the last mile, originally under the name "Public Switched Digital Capacity" (PSDC). This would allow call routing to be completed in an all-digital system, while also offering a separate data line. The Basic Rate Interface, or BRI, is the standard last-mile connection in the ISDN system, offering two 64 kbit/s "bearer" lines and a single 16 kbit/s "delta" channel for commands and data. Although ISDN found a number of niche roles and some wider uptake in specific locales, the system was largely ignored and garnered the industry nickname "innovation subscribers didn't need." It found a use for a time for small-office digital connection, using the voice lines for data at 64 kbit/s, sometimes "bonded" to 128 kbit/s, but the introduction of 56 kbit/s modems undercut its value in many roles. It also found use in videoconference systems, where the direct end-to-end connection was desirable. The H.320 standard was designed around its 64 kbit/s data rate. The underlying ISDN concepts found wider use as a replacement for the T1/E1 lines it was originally intended to extend, roughly doubling the performance of those lines.

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1. ISDN

   ISDN is a music album by experimental electronica artists The Future Sound of London which was released in two different versions in 1994 and 1995. The music on the album is edited together from various live broadcasts that the band had broadcast to radio stations all over the world using ISDN, which at the time was a relatively new technology. The band repeated the format in 1997 with the limited edition ISDN Show, another live album of ISDN broadcasts.

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1. ISDN

   What does ISDN stand for? -- Explore the various meanings for the ISDN acronym on the Abbreviations.com website.

Anagrams for isdn »

1. dins

2. NIDS

How to pronounce isdn?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say isdn in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of isdn in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of isdn in Pythagorean Numerology is: 1

Examples of isdn in a Sentence

1. Matt Harris:

   We'd turn up...and you'd basically be 10 teams down the pitlane arguing over who got the ISDN lines because there weren't enough supplied into the track, you dialed it up and if you didn't keep it dialed up for the weekend, basically you lost it when somebody else used it.

Popularity rank by frequency of use

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Isdn
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=isdn