The class 3 toll switch and the tandem class 4 switch are very similar in physical structure except with regard to the software.

Name: The class 3 toll switch and the tandem class 4 switch are very similar in physical structure except with regard to the software.
Brand: Quizplus
Rating: 4.9 (48 reviews)

Question

Quizplus · Accepted Answer

The class 3 toll switch and the tandem class 4 switch indeed have very similar physical structures, with the primary differences between them being in their software and the specific functions they perform within the telephone network.

The Class 3 Toll Switch and the Tandem Class 4