static void Main(string[] args)
{
SimCard simCard = new SimCard("+38(096)5236888");
simCard.AddContact(new Contact("Mum", "+38(096)5236845"));
simCard.AddContact(new Contact("Dad", "+38(096)5236889"));
Contact brother = new Contact("Brother", "+38(096)5233873");
brother.Numbers.Add("+38(093)5233779");
simCard.AddContact(brother);
LandlinePhone landlinePhone = new LandlinePhone(2005);
landlinePhone.Number = "596235";
ThomasEdisonPhone thomasEdisonPhone = new ThomasEdisonPhone(1980);
thomasEdisonPhone.Number = "562348";
CellPhone cellphone = new CellPhone(2011, 5, simCard);
Smartphone smartphone = new Smartphone(2018, 48, "Android", simCard);
VideoPhone videoPhone = new VideoPhone(2017, 24, simCard);
User user = new User("Daria");
Console.WriteLine("LandlinePhone");
user.CallAnotherUser("395698", landlinePhone);
Console.WriteLine("*************************");
user.AcceptIncomingCall("798562", landlinePhone);
Console.WriteLine("*************************");
Console.WriteLine("ThomasEdisonPhone");
user.CallAnotherUser("984256", thomasEdisonPhone);
Console.WriteLine("*************************");
user.AcceptIncomingCall("658423", thomasEdisonPhone);
Console.WriteLine("*************************");
Console.WriteLine("CellPhone");
user.CallAnotherUser("Mum", cellphone);
Console.WriteLine("*************************");
user.AcceptIncomingCall("+38(096)5236889", cellphone);
Console.WriteLine("*************************");
Console.WriteLine("Smartphone");
user.CallAnotherUser("+38(097)5428953", smartphone);
Console.WriteLine("*************************");
user.AcceptIncomingCall("+38(097)5428953", smartphone);
Console.WriteLine("*************************");
Console.WriteLine("VideoPhone");
user.CallAnotherUser("+38(097)5428988", videoPhone);
Console.WriteLine("*************************");
user.AcceptIncomingCall("+38(097)5477753", videoPhone);
Console.WriteLine("*************************");
Console.ReadLine();
}