What Is the Main Advantage of Transmitting Voice Calls Using

Multiple Choice

What is the main advantage of transmitting voice calls using packet switching vs. circuit switching?

A) There is no advantage; voice must always be transmitted using circuit-switching.
B) Call setup is faster using packet switching.
C) The amount of bandwidth used is much larger with packet switching.
D) The voice call does not tie up the channel 100 percent of the time using packet switching.