diff --git a/dom/system/gonk/RadioInterfaceLayer.js b/dom/system/gonk/RadioInterfaceLayer.js
index 468046888958..3ff4351b420c 100644
--- a/dom/system/gonk/RadioInterfaceLayer.js
+++ b/dom/system/gonk/RadioInterfaceLayer.js
@@ -1021,6 +1021,10 @@ RadioInterface.prototype = {
                                                       message.callIndex,
                                                       message.notification);
         break;
+      case "conferenceError":
+        gTelephonyProvider.notifyConferenceError(message.errorName,
+                                                 message.errorMsg);
+        break;
       case "emergencyCbModeChange":
         this.handleEmergencyCbModeChange(message);
         break;
diff --git a/dom/system/gonk/ril_worker.js b/dom/system/gonk/ril_worker.js
index 75da97ed3d76..e4832de3e1df 100644
--- a/dom/system/gonk/ril_worker.js
+++ b/dom/system/gonk/ril_worker.js
@@ -5040,6 +5040,10 @@ RIL[REQUEST_SWITCH_HOLDING_AND_ACTIVE] = function REQUEST_SWITCH_HOLDING_AND_ACT
 RIL[REQUEST_CONFERENCE] = function REQUEST_CONFERENCE(length, options) {
   if (options.rilRequestError) {
     this._hasConferenceRequest = false;
+    options = {rilMessageType: "conferenceError",
+               errorName: "addError",
+               errorMsg: RIL_ERROR_TO_GECKO_ERROR[options.rilRequestError]};
+    this.sendChromeMessage(options);
     return;
   }
 };
@@ -5629,7 +5633,15 @@ RIL[REQUEST_BASEBAND_VERSION] = function REQUEST_BASEBAND_VERSION(length, option
   this.basebandVersion = Buf.readString();
   if (DEBUG) debug("Baseband version: " + this.basebandVersion);
 };
-RIL[REQUEST_SEPARATE_CONNECTION] = null;
+RIL[REQUEST_SEPARATE_CONNECTION] = function REQUEST_SEPARATE_CONNECTION(length, options) {
+  if (options.rilRequestError) {
+    options = {rilMessageType: "conferenceError",
+               errorName: "removeError",
+               errorMsg: RIL_ERROR_TO_GECKO_ERROR[options.rilRequestError]};
+    this.sendChromeMessage(options);
+    return;
+  }
+};
 RIL[REQUEST_SET_MUTE] = null;
 RIL[REQUEST_GET_MUTE] = null;
 RIL[REQUEST_QUERY_CLIP] = function REQUEST_QUERY_CLIP(length, options) {
diff --git a/dom/telephony/gonk/TelephonyProvider.js b/dom/telephony/gonk/TelephonyProvider.js
index 4b235dacba1a..c54cf40322c8 100644
--- a/dom/telephony/gonk/TelephonyProvider.js
+++ b/dom/telephony/gonk/TelephonyProvider.js
@@ -574,6 +574,12 @@ TelephonyProvider.prototype = {
     this._notifyAllListeners("conferenceCallStateChanged", [aState]);
   },
 
+  notifyConferenceError: function notifyConferenceError(aName, aMessage) {
+    if (DEBUG) debug("handleConferenceError: " + aName + "." +
+                     " Error details: " + aMessage);
+    this._notifyAllListeners("notifyConferenceError", [aName, aMessage]);
+  },
+
   /**
    * nsIObserver interface.
    */