What does ISDN stand for?

What does ISDN mean?

ISDN	Integrated Services Digital Network Academic & Science » Electronics
ISDN	Integrated Services Digital Network Computing » General
ISDN	Integrated Services Digital Network Computing » Networking
ISDN	Integrated Services Digital Network Computing » Drivers
ISDN	Integrated Services Digital Network Governmental » FDA
ISDN	It Still Does Nothing Miscellaneous » Funnies
ISDN	I See Dollars Now Miscellaneous » Funnies
ISDN	Inas Schule der Doppelten Negation International » German
ISDN	I Still Don't No Miscellaneous » Funnies
ISDN	Incredibly Speedy Data Now Miscellaneous » Funnies
ISDN	International Society for Developmental Neuroscience Community » Non-Profit Organizations
ISDN	Integrated Services Digital Network Computing » Hardware
ISDN	Integrated Services Digital Network Computing » Telecom
ISDN	Integrated System Development Network Computing » General
ISDN	Integrated System Development Network Business » Products
ISDN	Incompatible Silly Digital Nonsense Miscellaneous » Funnies