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.
Interesting Lincoln Memorial Facts: 1  Abraham Lincoln was one of the most cherished of the United States' presidents. 2  Abraham Lincoln was instrumental in leading the U.S. through one of its most troubled periods, and the Civil War. 3  Abraham Lincoln was assassinated by John Wilkes Booth, an actor and Confederate sympathizer, on April 14th, 1865.