One result is also predictable - jammed phone circuits and fast busy signals.

She pulled the number he'd given her from the cybofax's memory, and entered it in the phone circuit.

The phone circuits were in a service corridor just off the main lobby.

However, callers from the United States often find that phone circuits are busy.

That phone circuit had existed for less than fifteen seconds.

"We blew out the phone circuits in Chicago and Newark," he said.

"Done," Anoshi announced over the common phone circuit of both ships.

"We're scheduled for a down period now, anyway," he was saying over the phone circuit.

At first there was nothing but shocked silence in the control room, broken by the sonar chief calling them over the phone circuit.

If a phone circuit goes dead and no one is on the line, does it really stop carrying sound?