diff --git a/restcomm/restcomm.mscontrol.mms/src/main/java/org/restcomm/connect/mscontrol/mms/MgcpMediaGroup.java b/restcomm/restcomm.mscontrol.mms/src/main/java/org/restcomm/connect/mscontrol/mms/MgcpMediaGroup.java
index f118ee6811..3c94df9270 100644
--- a/restcomm/restcomm.mscontrol.mms/src/main/java/org/restcomm/connect/mscontrol/mms/MgcpMediaGroup.java
+++ b/restcomm/restcomm.mscontrol.mms/src/main/java/org/restcomm/connect/mscontrol/mms/MgcpMediaGroup.java
@@ -251,7 +251,7 @@ protected void notification(final Object message) {
         }
         if (originator != null)
             this.originator.tell(event, self);
-        if (!response.get().isPartial()) {
+        if (response.get() == null || !response.get().isPartial()) {
             ivrInUse = false;
         }
     }