Those extensions are defined on the listed-directory screen the extensions are incoming DID or DNIS digits sent from the trunk provider for incoming calls and are directly related to 800 numbers or 10 digit numbers being called from the outside world.
This article is about the writer. For the passenger train service, see Carl Sandburg (train). Carl Sandburg (January 6, 1878 â July 22, 1967) was an American poet, writer, and editor who won three Pulitzer Prizes: two for his poetry and one for his biography of Abraham Lincoln.
Abraham Lincoln: The Man and the Myth. Fort Worth: Harcourt College Publishers, 2000. Bartlett, D. W. (David W.). Life and Public Services of Hon. Abraham Lincoln, With a Portrait on Steel, to Which is Added a Biographical Sketch of Hon. Hannibal Hamlin.