diff --git a/core/AmDtmfDetector.cpp b/core/AmDtmfDetector.cpp
index 0b330895..57a09154 100644
--- a/core/AmDtmfDetector.cpp
+++ b/core/AmDtmfDetector.cpp
@@ -616,7 +616,7 @@ void AmDtmfHandler::process(AmEvent *evt)
     if (event)
     {
         DBG("++++ DTMF %d\n", event->event());
-        m_session->onDtmf(event->event(), event->duration());
+        m_session->doDtmf(event->event(), event->duration());
     }
     evt->processed = true;
 }
diff --git a/core/AmSession.cpp b/core/AmSession.cpp
index 4dc9121a..747f2b2d 100644
--- a/core/AmSession.cpp
+++ b/core/AmSession.cpp
@@ -393,6 +393,10 @@ void AmSession::putDtmfAudio(const unsigned char *buf, int size, int user_ts)
     m_dtmfEventQueue.putDtmfAudio(buf, size, user_ts);
 }
 
+void AmSession::doDtmf(int event, int duration_msec) {
+  postEvent(new AmSessionDtmfEvent(event, duration_msec));
+}
+
 void AmSession::onDtmf(int event, int duration_msec)
 {
     DBG("AmSession::onDtmf(%i,%i)\n",event,duration_msec);
@@ -434,6 +438,12 @@ void AmSession::process(AmEvent* ev)
 	setStopped();
 	return;
     }
+
+    AmSessionDtmfEvent* sess_dtmf_ev = dynamic_cast<AmSessionDtmfEvent*>(ev);
+    if (sess_dtmf_ev) {
+      onDtmf(sess_dtmf_ev->event_id, sess_dtmf_ev->getDuration());
+      return;
+    }
 }
 
 
diff --git a/core/AmSession.h b/core/AmSession.h
index 1efbe47b..9a26fb1c 100644
--- a/core/AmSession.h
+++ b/core/AmSession.h
@@ -50,9 +50,17 @@ using std::map;
 using std::pair;
 
 class AmSessionFactory;
-//class AmDialogState;
 class AmDtmfEvent;
 
+class AmSessionDtmfEvent : public AmEvent {
+  int duration_msec;
+public:
+  AmSessionDtmfEvent(int key, int duration_msec) 
+    : AmEvent(key), duration_msec(duration_msec)
+  { }
+  int getDuration() { return duration_msec; }
+};
+
 
 /**
  *  Signaling plugins must inherite from this class.
@@ -285,10 +293,11 @@ public:
     bool isDtmfDetectionEnabled() { return m_dtmfDetectionEnabled; }
     void setDtmfDetectionEnabled(bool e) { m_dtmfDetectionEnabled = e; }
     void putDtmfAudio(const unsigned char *buf, int size, int user_ts);
-
+    /** the dtmf detector posts events using this method*/  
+    void doDtmf(int event, int duration_msec);
+    /** event handler for apps to use*/
     virtual void onDtmf(int event, int duration);
 
-
     /**
      * onStart will be called before everything else.
      */