diff --git a/res/values/strings.xml b/res/values/strings.xml
index f5db225..ec7d761 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1366,6 +1366,12 @@
         Unable to connect, please insert a valid SIM card.
     </string>
 
+    <!-- Call failure reason displayed when an in-progress WIFI call fails due to a loss of WIFI
+         connectivity, or the WIFI signal has degraded to the point the call cannot continue. -->
+    <string name="callFailed_wifi_lost">
+        Wi-Fi connection lost.  Call ended.
+    </string>
+
     <!-- The title for the change voicemail PIN activity -->
     <string name="change_pin_title">Change Voicemail PIN</string>
     <!-- The label for the continue button in change voicemail PIN activity -->
diff --git a/src/com/android/services/telephony/DisconnectCauseUtil.java b/src/com/android/services/telephony/DisconnectCauseUtil.java
index 534f510..c356899 100644
--- a/src/com/android/services/telephony/DisconnectCauseUtil.java
+++ b/src/com/android/services/telephony/DisconnectCauseUtil.java
@@ -130,6 +130,7 @@
             case android.telephony.DisconnectCause.DATA_LIMIT_REACHED:
             case android.telephony.DisconnectCause.DIALED_ON_WRONG_SLOT:
             case android.telephony.DisconnectCause.IMEI_NOT_ACCEPTED:
+            case android.telephony.DisconnectCause.WIFI_LOST:
                 return DisconnectCause.ERROR;
 
             case android.telephony.DisconnectCause.DIALED_MMI:
@@ -386,6 +387,10 @@
                 resourceId = R.string.callFailed_imei_not_accepted;
                 break;
 
+            case android.telephony.DisconnectCause.WIFI_LOST:
+                resourceId = R.string.callFailed_wifi_lost;
+                break;
+
             default:
                 break;
         }