diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 27aadd56dac5d..9243467531e1c 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -13782,6 +13782,15 @@ public class TelephonyManager {
         sServiceHandleCacheEnabled = true;
     }
 
+    /**
+     * Setup sITelephony for testing.
+     * @hide
+     */
+    @VisibleForTesting
+    public static void setupITelephonyForTest(ITelephony telephony) {
+        sITelephony = telephony;
+    }
+
     /**
      * Whether device can connect to 5G network when two SIMs are active.
      * @hide