diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/SIPProcessorObserver.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/SIPProcessorObserver.java
index 7329e9fd..3724a3be 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/SIPProcessorObserver.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/SIPProcessorObserver.java
@@ -126,6 +126,9 @@ public class SIPProcessorObserver implements ISIPProcessorObserver {
                     }
                 }
             }
+            if (responseEvent.getDialog() != null) {
+                responseEvent.getDialog().delete();
+            }
         }