The long-distance carrier system provided in the ___________ and throughout the world is designed to transmit voice band signals over high-capacity transmission links, such as coaxial cable and microwave systems.
The long-distance carrier system provided in the ___________ and throughout the world is designed to transmit voice band signals over high-capacity transmission links, such as coaxial cable and microwave systems.
Explanation
The long-distance carrier system provided in the United States of America and throughout the world is designed to transmit voice band signals over high-capacity transmission links, such as coaxial cable and microwave systems.
Long-distance coaxial cable systems were introduced in the United States in 1946