Other Reasons For Silent Calls
People using telecommunications devices for the deaf (TDDs) and calling public agencies might expect the agency being called to answer with a TTY. The caller waits for "TTY tones" to be generated over the phone line. The answerer should place the phone receiver into the TTY coupler and type anything ("Hello, Go Ahead") so the caller knows it is connected. For public agencies that have a TTY, it is inappropriate to hang up on a silent call.
Many silent calls are a result of process known as pinging. This is very similar to an Internet Protocol (IP) ping, where the intention is to see if there is life at the destination. This is often used by data cleaning companies as a method of removing dead telephone numbers from old lists. Each number is dialed and immediately dropped if the call is connected. If the call is not dropped quickly enough it may result in a short ringing signal.
Read more about this topic: Silent Call
Famous quotes containing the words reasons, silent and/or calls:
“Metaphysics is the finding of bad reasons for what we believe upon instinct; but to find these reasons is no less an instinct.”
—F.H. (Francis Herbert)
“‘Tis on the living Envy feeds. She silent grows
When, after death, man’s honor is his guard.
So I, when on the pyre consumed I lie,
Shall live, for all that’s noblest will survive.”
—Ovid (Publius Ovidius Naso)
“The mark of the man of the world is absence of pretension. He does not make a speech; he takes a low business-tone, avoids all brag, is nobody, dresses plainly, promises not at all, performs much, speaks in monosyllables, hugs his fact. He calls his employment by its lowest name, and so takes from evil tongues their sharpest weapon. His conversation clings to the weather and the news, yet he allows himself to be surprised into thought, and the unlocking of his learning and philosophy.”
—Ralph Waldo Emerson (1803–1882)