diff --git a/app.py b/app.py
index f2f51b2..6116f53 100644
--- a/app.py
+++ b/app.py
@@ -47,6 +47,10 @@ def init_db():
         c.execute("ALTER TABLE radio_logs ADD COLUMN protocol TEXT DEFAULT 'DMR'")
     except: pass 
 
+    try:
+        c.execute("ALTER TABLE radio_logs ADD COLUMN source_ext TEXT DEFAULT ''")
+    except: pass
+
     c.execute('''CREATE TABLE IF NOT EXISTS users
                  (id INTEGER PRIMARY KEY AUTOINCREMENT, username TEXT UNIQUE, password_hash TEXT, 
                   role TEXT, allowed_nodes TEXT)''')
@@ -122,8 +126,8 @@ def save_cache(data):
 def save_to_sqlite(client_id, data, protocol="DMR"):
     conn = sqlite3.connect(DB_PATH)
     c = conn.cursor()
-    c.execute("INSERT INTO radio_logs (timestamp, client_id, protocol, source_id, target, slot, duration, ber) VALUES (datetime('now', 'localtime'), ?, ?, ?, ?, ?, ?, ?)",
-              (client_id, protocol, str(data.get('source_id', '---')), str(data.get('destination_id', '---')), data.get('slot', 0), round(data.get('duration', 0), 1), round(data.get('ber', 0), 2)))
+    c.execute("INSERT INTO radio_logs (timestamp, client_id, protocol, source_id, target, slot, duration, ber, source_ext) VALUES (datetime('now', 'localtime'), ?, ?, ?, ?, ?, ?, ?, ?)",
+              (client_id, protocol, str(data.get('source_id', '---')), str(data.get('destination_id', '---')), data.get('slot', 0), round(data.get('duration', 0), 1), round(data.get('ber', 0), 2), str(data.get('source_ext', ''))))
     conn.commit()
     conn.close()
     socketio.emit('dati_aggiornati')
@@ -345,13 +349,13 @@ def on_message(client, userdata, msg):
                             else:
                                 target = current_target
 
-                            active_calls[cid][k] = {'src': src, 'dst': target}
+                            active_calls[cid][k] = {'src': src, 'dst': target, 'ext': str(p.get('source_ext', ''))}
                             client_telemetry[cid].update({"ts1":"","ts2":"","alt": f"{ico} {name}: {src} ➔ {target}"})
                             socketio.emit('dati_aggiornati')  # <--- WEBSOCKET
                         
                         elif act in ['end', 'lost']:
-                            info = active_calls[cid].get(k, {'src': '---', 'dst': '---'})
-                            p.update({'source_id': info['src'], 'destination_id': info['dst']})
+                            info = active_calls[cid].get(k, {'src': '---', 'dst': '---', 'ext': ''})
+                            p.update({'source_id': info['src'], 'destination_id': info['dst'], 'source_ext': info['ext']})
                             save_to_sqlite(cid, p, protocol=name)
                             client_telemetry[cid]["alt"] = f"{'✅' if act=='end' else '⚠️'} {name}: {info['src']}"
                             save_cache(client_telemetry)
@@ -381,7 +385,7 @@ def get_clients():
 def get_logs():
     conn = sqlite3.connect(DB_PATH, timeout=10)
     c = conn.cursor()
-    c.execute("SELECT timestamp, client_id, protocol, source_id, target, slot, duration, ber FROM radio_logs ORDER BY id DESC LIMIT 60")
+    c.execute("SELECT timestamp, client_id, protocol, source_id, target, slot, duration, ber, source_ext FROM radio_logs ORDER BY id DESC LIMIT 60")
     logs = c.fetchall()
     conn.close()
     return jsonify(logs)
diff --git a/templates/index.html b/templates/index.html
index 15a5007..b4d4913 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -795,7 +795,19 @@
             const res = await fetch('/api/logs'); const logs = await res.json();
             const tbody = document.getElementById('log-body'); let tableHTML = ""; let networkLogs = {};
             logs.forEach(row => {
-                const time = row[0] ? row[0].split(' ')[1] : "--:--"; const clientId = row[1]; const protocol = row[2] || "DMR"; const source = row[3] || "---"; const target = row[4] || "---"; const rawSlot = row[5]; 
+                const time = row[0] ? row[0].split(' ')[1] : "--:--"; 
+                const clientId = row[1]; 
+                const protocol = row[2] || "DMR"; 
+                let source = row[3] || "---"; 
+                const target = row[4] || "---"; 
+                const rawSlot = row[5]; 
+                const source_ext = row[8]; // <--- NUOVO CAMPO DAL BACKEND
+
+                // Formattiamo il source_ext se presente e non vuoto
+                if (source_ext && source_ext.trim() !== "") {
+                    source = `${source} <span style="font-size:0.8em; color:#94a3b8; font-family:'JetBrains Mono', monospace;">/${source_ext}</span>`;
+                }
+
                 const slotDisplay = protocol === "DMR" ? `TS${rawSlot}` : "--";
                 let protoColor = "#3b82f6"; if (protocol === "NXDN") protoColor = "#10b981"; else if (protocol === "YSF") protoColor = "#8b5cf6"; else if (protocol === "D-STAR") protoColor = "#06b6d4"; else if (protocol === "P25") protoColor = "#f59e0b";
                 
@@ -810,7 +822,6 @@
             clients.forEach(c => { const localDiv = document.getElementById(`sys-log-${c.id}`); if (localDiv && networkLogs[c.id]) { localDiv.innerHTML = networkLogs[c.id]; } });
         } catch (e) { console.error(e); }
     }
-
     // --- USER MANAGEMENT (ADD & EDIT) ---
     async function openAdmin() { document.getElementById('admin-modal').style.display = 'flex'; loadUsers(); loadSettings(); cancelEdit(); }
     function closeAdmin() { document.getElementById('admin-modal').style.display = 'none'; cancelEdit(); }