Broadband Telecommunications Technologies and Management

8. A call centrr has 60 employees online, each of whom make one phone call every 3 min on average, and talk on average for 2 min. Each call costs 15 . (a) What is the total traffic in erlangs? (b) How many circuits are required for a GoS of 1%? (c) How much should the yearly (250 working days, 8 working hours a day) lease price be for the company to make a 50% saving in its telephone bills over the first 3 years? Assume the lease setup fee of $30 000 should be paid over a period of 3 years.