static void Main(string[] args)
{
BillingSystem BS = new BillingSystem();
AutomaticPhoneExchange ATE = new AutomaticPhoneExchange(BS);
var lite = new Rate("Lite", 4, 2);
var short2 = new Rate("Short", 0, 6);
ATE.AddNewRate(lite);
ATE.AddNewRate(short2);
Terminal t1 = ATE.ConcludeContract("Mihail", "01", 20, lite);
Terminal t2 = ATE.ConcludeContract("Igor", "02", 30, lite);
Terminal t3 = ATE.ConcludeContract("Oksana", "03", 25, short2);
t1.TurnOn();
t2.TurnOn();
t3.TurnOn();
t1.Call("02");
Thread.Sleep(2000);
t3.Call("01");
Thread.Sleep(2000);
t2.TurnOff();
Thread.Sleep(2000);
t1.Call("02");
Thread.Sleep(2000);
t1.Call("03");
Thread.Sleep(2000);
t1.EndCall();
Thread.Sleep(2000);
t1.GetCallsHistory();
Thread.Sleep(2000);
t1.GetRateInfo();
Thread.Sleep(2000);
t1.ChangeRate("short");
Thread.Sleep(2000);
t1.GetCallsHistoryByCost(4);
Console.ReadLine();
}
