In telecommunication, call tracing is a procedure that permits an entitled user to be informed about the routing of data for an established connection, identifying the entire route from the origin to the destination.
There are two types of call tracing. Permanent call tracing permits tracing of all calls. On-demand call tracing permits tracing, upon request, of a specific call, provided that the called party dials a designated code immediately after the call to be traced is disconnected.
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C".
Famous quotes containing the words call and/or tracing:
“At length he would call to let us know where he was waiting for us with his canoe, when, on account of the windings of the stream, we did not know where the shore was, but he did not call often enough, forgetting that we were not Indians.... This was not because he was unaccommodating, but a proof of superior manners. Indians like to get along with the least possible communication and ado. He was really paying us a great compliment all the while, thinking that we preferred a hint to a kick.”
—Henry David Thoreau (1817–1862)
“In mind, she was of a strong and vigorous turn, having from her earliest youth devoted herself with uncommon ardour to the study of the law; not wasting her speculations upon its eagle flights, which are rare, but tracing it attentively through all the slippery and eel-like crawlings in which it commonly pursues its way.”
—Charles Dickens (1812–1870)