diff --git a/modules/features/teamsbot/service.py b/modules/features/teamsbot/service.py
index 4e68a9d7..6a9db449 100644
--- a/modules/features/teamsbot/service.py
+++ b/modules/features/teamsbot/service.py
@@ -778,6 +778,12 @@ class TeamsbotService:
         if self.config.responseMode == TeamsbotResponseMode.TRANSCRIBE_ONLY:
             return
 
+        # Stop phrases: trigger immediately without debounce (root cause: 3s debounce delayed stop)
+        if self._isStopPhrase(text):
+            logger.info(f"Session {sessionId}: Stop phrase detected, triggering analysis immediately")
+            await self._analyzeAndRespond(sessionId, interface, voiceInterface, websocket, createdTranscript)
+            return
+
         # Update activity for any pending debounced trigger
         if self._pendingNameTrigger:
             self._pendingNameTrigger["lastActivity"] = time.time()
@@ -855,6 +861,20 @@ class TeamsbotService:
 
         return False
 
+    def _isStopPhrase(self, text: str) -> bool:
+        """Check if text is a stop command (stop, halt, be quiet, etc.). Triggers immediate analysis."""
+        if not text or len(text.strip()) < 2:
+            return False
+        t = text.strip().lower()
+        words = [w.strip(".,!?:;\"'()[]") for w in t.split() if w.strip()]
+        wordSet = set(words)
+        stopWords = {"stop", "stopp", "halt", "ruhe", "stille", "schweig", "arrete", "quiet", "shut"}
+        if wordSet & stopWords:
+            return True
+        if "sei still" in t or "be quiet" in t or "shut up" in t or "aufhoeren" in t or "aufhören" in t:
+            return True
+        return False
+
     def _detectBotName(self, text: str) -> bool:
         """Check if text contains the bot's name (exact or phonetically similar)."""
         botNameLower = self.config.botName.lower()