diff --git a/src/net/java/sip/communicator/service/protocol/event/CallParticipantListener.java b/src/net/java/sip/communicator/service/protocol/event/CallParticipantListener.java
index 511f42629..2b2de8c11 100644
--- a/src/net/java/sip/communicator/service/protocol/event/CallParticipantListener.java
+++ b/src/net/java/sip/communicator/service/protocol/event/CallParticipantListener.java
@@ -48,6 +48,16 @@ public interface CallParticipantListener
      */
     public void participantAddressChanged(CallParticipantChangeEvent evt);
 
+    /**
+     * Indicates that a change has occurred in the transport address that we
+     * use to communicate with the participant.
+     *
+     * @param evt The <tt>CallParticipantChangeEvent</tt> instance containing
+     * the source event as well as its previous and its new transport address.
+     */
+    public void participantTransportAddressChanged(
+                                        CallParticipantChangeEvent evt);
+
     /**
      * Indicates that a change has occurred in the image of the source
      * CallParticipant.