public static void AddCalls()
{
gsm.AddCall(new Call("20/08/2018", "18:30", "01234567890", 3600));
gsm.AddCall(new Call("20/08/2018", "19:30", "01251577890", 360));
gsm.AddCall(new Call("21/08/2018", "08:30", "01242574890", 18520));
gsm.AddCall(new Call("20/08/2018", "18:30", "01234567890", 314));
gsm.AddCall(new Call("20/08/2018", "18:30", "01215189660", 1516));
}
public static void MakeCall(GSM gsm)
{
Console.WriteLine("Insert Date: ");
string date = Console.ReadLine();
Console.WriteLine("Insert Time: ");
string time = Console.ReadLine();
Console.WriteLine("Dialed Number: ");
string dial_number = Console.ReadLine();
Console.WriteLine("Insert Date: ");
Int32 duration = Int32.Parse(Console.ReadLine());
gsm.AddCall(new Call(date, time, dial_number, duration));
}