Consider a simple telephone network consisting of two end offices and one intermediate switch with a 1-MHz full-duplex trunk between each end office and the intermediate switch. The average telephone is used to make four calls per 8-hour workday, with a mean call duration of six minutes. Ten percent of the calls are long distance. What is the maximum number of telephones an end office can support?© BrainMass Inc. brainmass.com October 9, 2019, 10:51 pm ad1c9bdddf
A call is long distance if the caller and the receiver fall under different end offices. In this case the call goes like "telephone1 -> endoffice1 -> intermediate switch -> endoffice2 -> telephone2".
Considering that standard voice call is 4000 Hz, the maximum number of simultaneous long distance calls that can happen (via multiplexing, ...
Stepwise calculations are substantiated with brief explanations.