diff --git a/src/Anrufmonitor.App/App.xaml.cs b/src/Anrufmonitor.App/App.xaml.cs
index a0cc363..9b1b80b 100644
--- a/src/Anrufmonitor.App/App.xaml.cs
+++ b/src/Anrufmonitor.App/App.xaml.cs
@@ -77,6 +77,7 @@ public partial class App : System.Windows.Application
         var sipMonitor = _host.Services.GetRequiredService<SipCallMonitor>();
         var lookupService = _host.Services.GetRequiredService<ContactLookupService>();
         var logger = _host.Services.GetRequiredService<ILogger<App>>();
+        var cache = _host.Services.GetRequiredService<ContactCache>();
 
         _trayIconManager = new TrayIconManager(
             onSyncNow: async () =>
@@ -84,6 +85,7 @@ public partial class App : System.Windows.Application
                 var syncService = _host.Services.GetRequiredService<ContactSyncService>();
                 await syncService.SyncOnceAsync(CancellationToken.None);
             },
+            onShowHistory: () => CallHistoryWindow.ShowAsync(cache),
             onExit: () => System.Windows.Application.Current.Shutdown());
         _trayIconManager.Show();
 
@@ -103,9 +105,14 @@ public partial class App : System.Windows.Application
             {
                 var contact = await lookupService.ResolveAsync(args.CallerNumber, CancellationToken.None);
                 logger.LogInformation("App: Kontakt aufgeloest zu {Name}", contact.DisplayName);
+
+                await cache.AddCallAsync(new CallLogEntry(
+                    args.CallId, DateTime.UtcNow, args.CallerNumber, contact.DisplayName,
+                    contact.Company, args.CalledNumber), CancellationToken.None);
+
                 System.Windows.Application.Current.Dispatcher.Invoke(() =>
                 {
-                    var popup = new CallPopupWindow(contact, args.CallId);
+                    var popup = new CallPopupWindow(contact, args.CallId, args.CalledNumber);
                     popup.Show();
                 });
             }
diff --git a/src/Anrufmonitor.App/CallHistoryWindow.xaml b/src/Anrufmonitor.App/CallHistoryWindow.xaml
new file mode 100644
index 0000000..f389665
--- /dev/null
+++ b/src/Anrufmonitor.App/CallHistoryWindow.xaml
@@ -0,0 +1,18 @@
+<Window x:Class="Anrufmonitor.App.CallHistoryWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Anrufmonitor - Letzte Anrufe"
+        Width="760" Height="460"
+        WindowStartupLocation="CenterScreen">
+    <DataGrid x:Name="Grid" AutoGenerateColumns="False" IsReadOnly="True"
+              HeadersVisibility="Column" GridLinesVisibility="Horizontal"
+              CanUserAddRows="False" SelectionMode="Single">
+        <DataGrid.Columns>
+            <DataGridTextColumn Header="Zeit" Binding="{Binding Time}" Width="140" />
+            <DataGridTextColumn Header="Name" Binding="{Binding DisplayName}" Width="*" />
+            <DataGridTextColumn Header="Firma" Binding="{Binding Company}" Width="160" />
+            <DataGridTextColumn Header="Nummer" Binding="{Binding Number}" Width="130" />
+            <DataGridTextColumn Header="Angerufen" Binding="{Binding CalledNumber}" Width="110" />
+        </DataGrid.Columns>
+    </DataGrid>
+</Window>
diff --git a/src/Anrufmonitor.App/CallHistoryWindow.xaml.cs b/src/Anrufmonitor.App/CallHistoryWindow.xaml.cs
new file mode 100644
index 0000000..e8bfc4f
--- /dev/null
+++ b/src/Anrufmonitor.App/CallHistoryWindow.xaml.cs
@@ -0,0 +1,34 @@
+using System.Windows;
+using Anrufmonitor.Contacts;
+
+namespace Anrufmonitor.App;
+
+/// <summary>Liste der letzten eingehenden Anrufe (aus der SQLite-Tabelle CallLog). Einzelinstanz.</summary>
+public partial class CallHistoryWindow : Window
+{
+    private static CallHistoryWindow? _instance;
+
+    private CallHistoryWindow()
+    {
+        InitializeComponent();
+        Closed += (_, _) => _instance = null;
+    }
+
+    public static async Task ShowAsync(ContactCache cache)
+    {
+        var entries = await cache.GetRecentCallsAsync(200, CancellationToken.None);
+
+        _instance ??= new CallHistoryWindow();
+        _instance.Grid.ItemsSource = entries.Select(e => new
+        {
+            Time = e.TimestampUtc.ToLocalTime().ToString("dd.MM.yyyy HH:mm:ss"),
+            e.DisplayName,
+            e.Company,
+            e.Number,
+            e.CalledNumber,
+        }).ToList();
+
+        _instance.Show();
+        _instance.Activate();
+    }
+}
diff --git a/src/Anrufmonitor.App/CallPopupWindow.xaml b/src/Anrufmonitor.App/CallPopupWindow.xaml
index 2907b0c..329427d 100644
--- a/src/Anrufmonitor.App/CallPopupWindow.xaml
+++ b/src/Anrufmonitor.App/CallPopupWindow.xaml
@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="Anrufmonitor"
-        Width="360" Height="140"
+        Width="360" Height="160"
         WindowStyle="None"
         AllowsTransparency="True"
         Background="Transparent"
@@ -16,6 +16,7 @@
                 <RowDefinition Height="Auto" />
                 <RowDefinition Height="Auto" />
                 <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
             </Grid.RowDefinitions>
 
             <TextBlock Grid.Row="0" Text="Eingehender Anruf" Foreground="#FF8CA0C4" FontSize="12" FontWeight="SemiBold" />
@@ -28,6 +29,8 @@
                 <TextBlock x:Name="NumberText" Foreground="#FF7C879C" FontSize="14" />
             </StackPanel>
 
+            <TextBlock Grid.Row="3" x:Name="CalledText" Foreground="#FF8CA0C4" FontSize="12" Margin="0,6,0,0" />
+
             <Button Content="✕" HorizontalAlignment="Right" VerticalAlignment="Top"
                     Width="24" Height="24" Padding="0" Margin="0,-16,-16,0"
                     Background="Transparent" BorderThickness="0" Foreground="#FF7C879C"
diff --git a/src/Anrufmonitor.App/CallPopupWindow.xaml.cs b/src/Anrufmonitor.App/CallPopupWindow.xaml.cs
index f28aab7..d280df4 100644
--- a/src/Anrufmonitor.App/CallPopupWindow.xaml.cs
+++ b/src/Anrufmonitor.App/CallPopupWindow.xaml.cs
@@ -18,13 +18,16 @@ public partial class CallPopupWindow : Window
     private readonly string _callId;
     private readonly DispatcherTimer _autoCloseTimer;
 
-    public CallPopupWindow(ContactInfo contact, string callId)
+    public CallPopupWindow(ContactInfo contact, string callId, string? calledNumber = null)
     {
         InitializeComponent();
 
         _callId = callId;
         OpenPopups[callId] = this;
 
+        CalledText.Text = string.IsNullOrWhiteSpace(calledNumber) ? string.Empty : $"angerufen: {calledNumber}";
+        CalledText.Visibility = string.IsNullOrWhiteSpace(calledNumber) ? Visibility.Collapsed : Visibility.Visible;
+
         NameText.Text = contact.DisplayName;
         CompanyText.Text = contact.Company ?? string.Empty;
         CompanyText.Visibility = string.IsNullOrWhiteSpace(contact.Company) ? Visibility.Collapsed : Visibility.Visible;
diff --git a/src/Anrufmonitor.App/TrayIconManager.cs b/src/Anrufmonitor.App/TrayIconManager.cs
index d46a471..53d664b 100644
--- a/src/Anrufmonitor.App/TrayIconManager.cs
+++ b/src/Anrufmonitor.App/TrayIconManager.cs
@@ -13,10 +13,14 @@ public sealed class TrayIconManager : IDisposable
     private readonly NotifyIcon _notifyIcon;
     private Icon? _currentIcon;
 
-    public TrayIconManager(Func<Task> onSyncNow, System.Action onExit)
+    public TrayIconManager(Func<Task> onSyncNow, Func<Task> onShowHistory, System.Action onExit)
     {
         var menu = new ContextMenuStrip();
 
+        var historyItem = new ToolStripMenuItem("Letzte Anrufe");
+        historyItem.Click += async (_, _) => await onShowHistory();
+        menu.Items.Add(historyItem);
+
         var syncItem = new ToolStripMenuItem("Kontakte jetzt synchronisieren");
         syncItem.Click += async (_, _) => await onSyncNow();
         menu.Items.Add(syncItem);
@@ -36,6 +40,7 @@ public sealed class TrayIconManager : IDisposable
             ContextMenuStrip = menu,
             Visible = false,
         };
+        _notifyIcon.DoubleClick += async (_, _) => await onShowHistory();
     }
 
     public void Show() => _notifyIcon.Visible = true;
diff --git a/src/Anrufmonitor.Contacts/CallLogEntry.cs b/src/Anrufmonitor.Contacts/CallLogEntry.cs
new file mode 100644
index 0000000..831e2e8
--- /dev/null
+++ b/src/Anrufmonitor.Contacts/CallLogEntry.cs
@@ -0,0 +1,10 @@
+namespace Anrufmonitor.Contacts;
+
+/// <summary>Ein Eintrag der Anrufliste (eingehender Anruf).</summary>
+public sealed record CallLogEntry(
+    string CallId,
+    DateTime TimestampUtc,
+    string Number,
+    string DisplayName,
+    string? Company,
+    string? CalledNumber);
diff --git a/src/Anrufmonitor.Contacts/ContactCache.cs b/src/Anrufmonitor.Contacts/ContactCache.cs
index d49b6a4..91bcb90 100644
--- a/src/Anrufmonitor.Contacts/ContactCache.cs
+++ b/src/Anrufmonitor.Contacts/ContactCache.cs
@@ -60,9 +60,67 @@ public sealed class ContactCache
             );
             """, cancellationToken);
 
+        await ExecuteAsync(connection, transaction, """
+            CREATE TABLE IF NOT EXISTS CallLog (
+                Id           INTEGER PRIMARY KEY AUTOINCREMENT,
+                CallId       TEXT NOT NULL,
+                CalledAtUtc  TEXT NOT NULL,
+                Number       TEXT NOT NULL,
+                DisplayName  TEXT NOT NULL,
+                Company      TEXT NULL,
+                CalledNumber TEXT NULL
+            );
+            """, cancellationToken);
+
         transaction.Commit();
     }
 
+    public async Task AddCallAsync(CallLogEntry entry, CancellationToken cancellationToken)
+    {
+        await using var connection = await OpenAsync(cancellationToken);
+        await using var transaction = connection.BeginTransaction();
+        await using var cmd = connection.CreateCommand();
+        cmd.Transaction = transaction;
+        cmd.CommandText = """
+            INSERT INTO CallLog (CallId, CalledAtUtc, Number, DisplayName, Company, CalledNumber)
+            VALUES ($callId, $at, $number, $displayName, $company, $calledNumber);
+            """;
+        cmd.Parameters.AddWithValue("$callId", entry.CallId);
+        cmd.Parameters.AddWithValue("$at", entry.TimestampUtc.ToString("O"));
+        cmd.Parameters.AddWithValue("$number", entry.Number);
+        cmd.Parameters.AddWithValue("$displayName", entry.DisplayName);
+        cmd.Parameters.AddWithValue("$company", (object?)entry.Company ?? DBNull.Value);
+        cmd.Parameters.AddWithValue("$calledNumber", (object?)entry.CalledNumber ?? DBNull.Value);
+        await cmd.ExecuteNonQueryAsync(cancellationToken);
+        transaction.Commit();
+    }
+
+    public async Task<IReadOnlyList<CallLogEntry>> GetRecentCallsAsync(int limit, CancellationToken cancellationToken)
+    {
+        await using var connection = await OpenAsync(cancellationToken);
+        await using var cmd = connection.CreateCommand();
+        cmd.CommandText = """
+            SELECT CallId, CalledAtUtc, Number, DisplayName, Company, CalledNumber
+            FROM CallLog ORDER BY Id DESC LIMIT $limit;
+            """;
+        cmd.Parameters.AddWithValue("$limit", limit);
+
+        var result = new List<CallLogEntry>();
+        await using var reader = await cmd.ExecuteReaderAsync(cancellationToken);
+        while (await reader.ReadAsync(cancellationToken))
+        {
+            result.Add(new CallLogEntry(
+                CallId: reader.GetString(0),
+                TimestampUtc: DateTime.Parse(reader.GetString(1), null, System.Globalization.DateTimeStyles.RoundtripKind),
+                Number: reader.GetString(2),
+                DisplayName: reader.GetString(3),
+                Company: reader.IsDBNull(4) ? null : reader.GetString(4),
+                CalledNumber: reader.IsDBNull(5) ? null : reader.GetString(5)));
+        }
+
+        return result;
+    }
+
     /// <summary>
     /// Ersetzt den kompletten Bestand einer Provider-Instanz (z. B. eines einzelnen
     /// Office365-Accounts) in einer einzigen Transaktion (kein Zwischenzustand mit
diff --git a/src/Anrufmonitor.Sip/IncomingCallEventArgs.cs b/src/Anrufmonitor.Sip/IncomingCallEventArgs.cs
index 6ade040..6b9ac30 100644
--- a/src/Anrufmonitor.Sip/IncomingCallEventArgs.cs
+++ b/src/Anrufmonitor.Sip/IncomingCallEventArgs.cs
@@ -1,7 +1,11 @@
 namespace Anrufmonitor.Sip;
 
-public sealed class IncomingCallEventArgs(string callId, string callerNumber, string? callerDisplayName) : EventArgs
+public sealed class IncomingCallEventArgs(
+    string callId, string callerNumber, string? callerDisplayName, string? calledNumber = null) : EventArgs
 {
+    /// <summary>Angerufene Nummer (aus To-Header bzw. Request-URI), falls der SIP-Server sie liefert.</summary>
+    public string? CalledNumber { get; } = calledNumber;
+
     /// <summary>SIP Call-ID, um zusammengehoerige Events (Ringing -> Ended) zu korrelieren.</summary>
     public string CallId { get; } = callId;
 
diff --git a/src/Anrufmonitor.Sip/SipCallMonitor.cs b/src/Anrufmonitor.Sip/SipCallMonitor.cs
index 6d11c19..324b702 100644
--- a/src/Anrufmonitor.Sip/SipCallMonitor.cs
+++ b/src/Anrufmonitor.Sip/SipCallMonitor.cs
@@ -25,6 +25,24 @@ public sealed class SipCallMonitor : BackgroundService
     private static readonly TimeSpan ReconnectDelay = TimeSpan.FromSeconds(15);
     private static readonly TimeSpan WatchdogInterval = TimeSpan.FromSeconds(60);
 
+    /// <summary>
+    /// Liest die angerufene Nummer aus dem Header "P-Called-Party-ID: &lt;sip:NUMMER@fritz.box&gt;".
+    /// SIPSorcery kennt den Header nicht typisiert, er liegt in UnknownHeaders.
+    /// </summary>
+    private static string? ExtractCalledNumber(SIPRequest request)
+    {
+        const string headerName = "P-Called-Party-ID";
+        var raw = request.Header.UnknownHeaders
+            .FirstOrDefault(h => h.StartsWith(headerName, StringComparison.OrdinalIgnoreCase));
+        if (raw is null)
+        {
+            return null;
+        }
+
+        var match = System.Text.RegularExpressions.Regex.Match(raw, @"sips?:(?<user>[^@>;]+)@");
+        return match.Success ? match.Groups["user"].Value : null;
+    }
+
     private readonly SipOptions _options;
     private readonly ILogger<SipCallMonitor> _logger;
 
@@ -211,11 +229,22 @@ public sealed class SipCallMonitor : BackgroundService
             var callerDisplayName = fromHeader?.FromName;
             var callId = inviteRequest.Header.CallId;
 
-            _logger.LogInformation(
-                "Eingehender Anruf von {Number} ({DisplayName}), Call-Id {CallId}",
-                callerNumber, callerDisplayName, callId);
+            // Angerufene Nummer: Die Fritz!Box liefert sie im Header P-Called-Party-ID
+            // (To/Request-URI enthalten nur die Geraeteadresse). Fallback: To-/Request-URI-User.
+            var calledNumber = ExtractCalledNumber(inviteRequest)
+                               ?? inviteRequest.Header.To?.ToURI?.User
+                               ?? inviteRequest.URI?.User;
+            var toNumber = inviteRequest.Header.To?.ToURI?.User;
+            var requestUriUser = inviteRequest.URI?.User;
 
-            IncomingCall?.Invoke(this, new IncomingCallEventArgs(callId, callerNumber, callerDisplayName));
+            _logger.LogInformation(
+                "Eingehender Anruf von {Number} ({DisplayName}) an {Called} [To={To}, Request-URI={Uri}], Call-Id {CallId}",
+                callerNumber, callerDisplayName, calledNumber, toNumber, requestUriUser, callId);
+
+            // Alle Header einmal roh ins Log (Debug), um z. B. P-Called-Party-ID/Diversion/History-Info zu pruefen.
+            _logger.LogDebug("INVITE-Header:{NewLine}{Headers}", Environment.NewLine, inviteRequest.Header.ToString());
+
+            IncomingCall?.Invoke(this, new IncomingCallEventArgs(callId, callerNumber, callerDisplayName, calledNumber));
 
             // Bewusst KEIN uas.Answer(...) - der Client bleibt rein passiv.
             // uas selbst wird hier nicht weiter benoetigt, das Cancel-Handling laeuft