What is the correct spelling for IFSDN?

If you happened to misspell "ifsdn", here are a few possible correct suggestions for what you might have intended to write. Perhaps you meant "isn't" which means "is not". Alternatively, you might have intended to type "inside" referring to the interior or inner part of something. Another possibility is "island", an area of land surrounded by water.

Correct spellings for IFSDN

  • ISDN ISDN, or Integrated Services Digital Network, is a digital technology used to transmit voice, data, and video over traditional telephone lines.