diff --git a/api/current.txt b/api/current.txt
index 462d76e93de97..1e9f2009b5bfb 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -43072,6 +43072,7 @@ package android.telephony {
     method @RequiresPermission(anyOf={android.Manifest.permission.ACCESS_NETWORK_STATE, android.Manifest.permission.READ_PHONE_STATE}) public boolean isDataRoamingEnabled();
     method public boolean isHearingAidCompatibilitySupported();
     method public boolean isNetworkRoaming();
+    method public boolean isRttSupported();
     method public boolean isSmsCapable();
     method @Deprecated public boolean isTtyModeSupported();
     method public boolean isVoiceCapable();
diff --git a/api/test-current.txt b/api/test-current.txt
index e4f999bb1f710..34c8f6ef5ecea 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -1477,7 +1477,6 @@ package android.telephony {
 
   public class TelephonyManager {
     method public int getCarrierIdListVersion();
-    method public boolean isRttSupported();
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void refreshUiccProfile();
     method public void setCarrierTestOverride(String, String, String, String, String, String, String);
     field public static final int UNKNOWN_CARRIER_ID_LIST_VERSION = -1; // 0xffffffff
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 125dc6e583a6b..dd2d683ef9762 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -7858,9 +7858,7 @@ public class TelephonyManager {
      * support for the feature and device firmware support.
      *
      * @return {@code true} if the device and carrier both support RTT, {@code false} otherwise.
-     * @hide
      */
-    @TestApi
     public boolean isRttSupported() {
         try {
             ITelephony telephony = getITelephony();