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Integrated Services Digital Network

ISDN is a communications standard for sending voice, video, and data over digital telephone lines or telephone wires. It supports data transfer rates of 64 Kbps and can support two lines at once (calles B channels), which allow you to use both lines to transfer data; this gives you data rates of 128 Kbps.
Wow! I had no idea ISDN was so much better than PSTN.
ISDN by James T. Carson April 23, 2006
Related Words
It still does nothing.
ISDN by Soiled Undergarment August 7, 2003
Integrated Services Digital Network.

Technology to completely digitize the phone service that was abandoned after much work (it began in the early 1980s) in the early 1990s becayse it was too expensive. It is currently used for high-speed Internet access, slower than T1 but faster than a modem. It is widely used by phone networks in some areas.
I don't have ISDN access
ISDN by Larstait November 6, 2003

igsnoramus 

A person who causes pain and suffering to their partner by being ignorant of the effects of their horrible snoring that causes their partner to be unable to sleep at night.
Maria: Oh, damn, I'm tired.

Eric: Why's that babe?
Maria: Because you're a loud-ass igsnoramus! Your snoring kept me up all damn night you jerk!
igsnoramus by Word Johnson June 30, 2012
"What do I do? IGSD, that's what I do"
IGSD by scudafi July 17, 2009
Too make believe that you are asleep to avoid a situation or person
I think James was igsnoring me, he just lay in bed and pretended to be asleep
Igsnoring by RitchieW October 2, 2012