diff --git a/radio/1.4/IRadio.hal b/radio/1.4/IRadio.hal
index dd69607..21c5097 100644
--- a/radio/1.4/IRadio.hal
+++ b/radio/1.4/IRadio.hal
@@ -128,6 +128,10 @@
      * does not support the emergency service category or emergency uniform resource names, the
      * field 'categories' or 'urns' may be ignored.
      *
+     * 'fromEmergencyDialer' indicates if this request originated from emergency dialer/shortcut,
+     * which means an explicit intent from the user to dial an emergency number. The modem must
+     * treat this as an actual emergency dial and not try to disambiguate.
+     *
      * If 'isTesting' is true, this request is for testing purpose, and must not be sent to a real
      * emergency service; otherwise it's for a real emergency call request.
      *
@@ -142,12 +146,14 @@
      *     of the call.
      * @param urns the emergency Uniform Resource Names (URN)
      * @param routing @1.4::EmergencyCallRouting the emergency call routing information.
+     * @param fromEmergencyDialer Flag indicating if this request originated from emergency dialer.
+     * @param isTesting Flag indicating if this request is for testing purpose.
      *
      * Response function is IRadioResponse.emergencyDialResponse()
      */
     oneway emergencyDial(int32_t serial, Dial dialInfo,
             bitfield<EmergencyServiceCategory> categories, vec<string> urns,
-            EmergencyCallRouting routing, bool isTesting);
+            EmergencyCallRouting routing, bool fromEmergencyDialer, bool isTesting);
 
     /**
      * Starts a network scan