static void Main(string[] args)
{
ElectronicPhone myPhone = new ElectronicPhone();
myPhone.Ring();
Console.ReadKey();
}
static void Main(string[] args)
{
ElectronicPhone myElPhone = new ElectronicPhone();
myElPhone.Ring();
TalkingPhone myTalkingPhone = new TalkingPhone();
myTalkingPhone.Ring();
DigitalPhone myDigitalPhone = new DigitalPhone();
myDigitalPhone.Ring();
myDigitalPhone.VoiceMail();
DigitalCellPhone myDigitalCell = new DigitalCellPhone();
myDigitalCell.Ring();
myDigitalCell.VoiceMail();
Console.ReadKey();
}
