diff --git a/telecomm/java/android/telecom/Connection.java b/telecomm/java/android/telecom/Connection.java
index 9ced4aeda2a36..97d599b9a9cd1 100644
--- a/telecomm/java/android/telecom/Connection.java
+++ b/telecomm/java/android/telecom/Connection.java
@@ -339,6 +339,7 @@ public abstract class Connection implements IConferenceable {
         public void onConferenceParticipantsChanged(Connection c,
                 List<ConferenceParticipant> participants) {}
         public void onConferenceStarted() {}
+        public void onConferenceMergeFailed(Connection c) {}
     }
 
     public static abstract class VideoProvider {
@@ -1546,6 +1547,17 @@ public abstract class Connection implements IConferenceable {
         mConferenceables.clear();
     }
 
+    /**
+     * Notifies listeners that the merge request failed.
+     *
+     * @hide
+     */
+    protected final void notifyConferenceMergeFailed() {
+        for (Listener l : mListeners) {
+            l.onConferenceMergeFailed(this);
+        }
+    }
+
     /**
      * Notifies listeners of a change to conference participant(s).
      *
diff --git a/telecomm/java/android/telecom/ConnectionService.java b/telecomm/java/android/telecom/ConnectionService.java
index aad7fcba4797c..984382410e3b0 100644
--- a/telecomm/java/android/telecom/ConnectionService.java
+++ b/telecomm/java/android/telecom/ConnectionService.java
@@ -562,6 +562,14 @@ public abstract class ConnectionService extends Service {
                 mAdapter.setIsConferenced(id, conferenceId);
             }
         }
+
+        @Override
+        public void onConferenceMergeFailed(Connection connection) {
+            String id = mIdByConnection.get(connection);
+            if (id != null) {
+                mAdapter.onConferenceMergeFailed(id);
+            }
+        }
     };
 
     /** {@inheritDoc} */
diff --git a/telecomm/java/android/telecom/ConnectionServiceAdapter.java b/telecomm/java/android/telecom/ConnectionServiceAdapter.java
index d026a28f1742b..a87dbe725d632 100644
--- a/telecomm/java/android/telecom/ConnectionServiceAdapter.java
+++ b/telecomm/java/android/telecom/ConnectionServiceAdapter.java
@@ -202,6 +202,21 @@ final class ConnectionServiceAdapter implements DeathRecipient {
         }
     }
 
+    /**
+     * Indicates that the merge request on this call has failed.
+     *
+     * @param callId The unique ID of the call being conferenced.
+     */
+    void onConferenceMergeFailed(String callId) {
+        for (IConnectionServiceAdapter adapter : mAdapters) {
+            try {
+                Log.d(this, "merge failed for call %s", callId);
+                adapter.setConferenceMergeFailed(callId);
+            } catch (RemoteException ignored) {
+            }
+        }
+    }
+
     /**
      * Indicates that the call no longer exists. Can be used with either a call or a conference
      * call.
diff --git a/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java b/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java
index 429f296e34d77..db815ba7a86f7 100644
--- a/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java
+++ b/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java
@@ -59,6 +59,7 @@ final class ConnectionServiceAdapterServant {
     private static final int MSG_SET_CONFERENCEABLE_CONNECTIONS = 20;
     private static final int MSG_ADD_EXISTING_CONNECTION = 21;
     private static final int MSG_ON_POST_DIAL_CHAR = 22;
+    private static final int MSG_SET_CONFERENCE_MERGE_FAILED = 23;
 
     private final IConnectionServiceAdapter mDelegate;
 
@@ -220,6 +221,15 @@ final class ConnectionServiceAdapterServant {
                     }
                     break;
                 }
+                case MSG_SET_CONFERENCE_MERGE_FAILED: {
+                    SomeArgs args = (SomeArgs) msg.obj;
+                    try {
+                        mDelegate.setConferenceMergeFailed((String) args.arg1);
+                    } finally {
+                        args.recycle();
+                    }
+                    break;
+                }
             }
         }
     };
@@ -279,6 +289,13 @@ final class ConnectionServiceAdapterServant {
                     .sendToTarget();
         }
 
+        @Override
+        public void setConferenceMergeFailed(String callId) {
+            SomeArgs args = SomeArgs.obtain();
+            args.arg1 = callId;
+            mHandler.obtainMessage(MSG_SET_CONFERENCE_MERGE_FAILED, args).sendToTarget();
+        }
+
         @Override
         public void setIsConferenced(String callId, String conferenceCallId) {
             SomeArgs args = SomeArgs.obtain();
diff --git a/telecomm/java/android/telecom/RemoteConnectionService.java b/telecomm/java/android/telecom/RemoteConnectionService.java
index 43a92cb576e72..5319793f396db 100644
--- a/telecomm/java/android/telecom/RemoteConnectionService.java
+++ b/telecomm/java/android/telecom/RemoteConnectionService.java
@@ -170,6 +170,13 @@ final class RemoteConnectionService {
             }
         }
 
+        @Override
+        public void setConferenceMergeFailed(String callId) {
+            // Nothing to do here.
+            // The event has already been handled and there is no state to update
+            // in the underlying connection or conference objects
+        }
+
         @Override
         public void addConferenceCall(
                 final String callId,
diff --git a/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl b/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl
index 7e7e9cc4a904d..67e2edbddd01a 100644
--- a/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl
+++ b/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl
@@ -56,6 +56,8 @@ oneway interface IConnectionServiceAdapter {
 
     void setIsConferenced(String callId, String conferenceCallId);
 
+    void setConferenceMergeFailed(String callId);
+
     void addConferenceCall(String callId, in ParcelableConference conference);
 
     void removeCall(String callId);