diff --git a/jingle/extension/source/org/jivesoftware/smackx/jingle/JingleSession.java b/jingle/extension/source/org/jivesoftware/smackx/jingle/JingleSession.java
index 59ebd8b4c..9b734356f 100644
--- a/jingle/extension/source/org/jivesoftware/smackx/jingle/JingleSession.java
+++ b/jingle/extension/source/org/jivesoftware/smackx/jingle/JingleSession.java
@@ -1074,7 +1074,7 @@ public abstract class JingleSession extends JingleNegotiator {
     public void close() {
         destroyMediaNeg();
         destroyTransportNeg();
-        removePacketListener();
+        removePacketListener();        
         System.out.println("Negociation Closed");
         super.close();
     }
diff --git a/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java b/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java
index 9b42adac2..b3df40703 100644
--- a/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java
+++ b/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java
@@ -142,6 +142,15 @@ public abstract class TransportNegotiator extends JingleNegotiator {
         return acceptedLocalCandidate;
     }
 
+    public void close() {
+        super.close();
+
+        for (TransportCandidate candidate : offeredCandidates)
+            if (candidate.getCandidateEcho() != null)
+                candidate.getCandidateEcho().cancel();
+
+    }
+
     /**
      * Obtain the best common transport candidate obtained in the negotiation.
      *