In telephony, a ground start or GST is a method of signaling from a terminal or subscriber local loop to a telephone exchange, in which method a cable pair is temporarily grounded to request dial tone. Most middle 20th century American payphones used "coin first" ground start lines, with the starting ground passing through the coin itself.
Read more about Ground Start: Ground Start Trunk
Famous quotes containing the words ground and/or start:
“Even great towers start at ground level.”
—Chinese proverb.
“I guess you know, Bob, that if I see you again, I’m just going to start shooting and figure it’s self-defense.”
—David Webb Peoples, screenwriter. Little Bill Daggett (Gene Hackman)