Adding test application

src/FritzCallMonitor.Demo/Program.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Threading;
+using AMWD.Net.Api.Fritz.CallMonitor;
+
+namespace FritzCallMonitor.Demo
+{
+	internal class Program
+	{
+		private static void Main(string[] args)
+		{
+			var cts = new CancellationTokenSource();
+
+			Console.CancelKeyPress += (sender, e) =>
+			{
+				cts.Cancel();
+				e.Cancel = true;
+			};
+
+			Console.WriteLine("FRITZ!Box Call Monitor Demo");
+			Console.WriteLine();
+
+			Console.Write("Enter the FRITZ!Box host (e.g., fritz.box): ");
+			string? host = Console.ReadLine()?.Trim();
+
+			if (string.IsNullOrEmpty(host))
+			{
+				Console.WriteLine("Host is required.");
+				return;
+			}
+
+			Console.Write("Enter the port (default is 1012): ");
+			string? portInput = Console.ReadLine()?.Trim();
+			int port = 1012;
+			if (!string.IsNullOrEmpty(portInput) && !int.TryParse(portInput, out port))
+			{
+				Console.WriteLine("Invalid port number. Using default port 1012.");
+				port = 1012;
+			}
+
+			using (var client = new CallMonitorClient(host, port))
+			{
+				client.OnEvent += (sender, e) =>
+				{
+					switch (e.Event)
+					{
+						case EventType.Ring:
+							Console.WriteLine($"{e.Timestamp:yyyy-MM-dd HH:mm:ss K} | #{e.ConnectionId} | Incoming Call from {e.CallerNumber} to {e.CalleeNumber}");
+							break;
+
+						case EventType.Connect:
+							Console.WriteLine($"{e.Timestamp:yyyy-MM-dd HH:mm:ss K} | #{e.ConnectionId} | Call connected to {e.CallerNumber}");
+							break;
+
+						case EventType.Disconnect:
+							Console.WriteLine($"{e.Timestamp:yyyy-MM-dd HH:mm:ss K} | #{e.ConnectionId} | Call disconnected after {e.Duration}");
+							break;
+
+						case EventType.Call:
+							Console.WriteLine($"{e.Timestamp:yyyy-MM-dd HH:mm:ss K} | #{e.ConnectionId} | Outgoing Call from {e.CalleeNumber} to {e.CallerNumber}");
+							break;
+					}
+				};
+
+				SpinWait.SpinUntil(() => cts.IsCancellationRequested);
+			}
+
+			cts.Dispose();
+		}
+	}
+}