1 files changed, 6 insertions, 0 deletions
diff --git a/java/com/android/dialer/telecom/TelecomUtil.java b/java/com/android/dialer/telecom/TelecomUtil.java
index 2608cb2aa..f05ec202d 100644
--- a/java/com/android/dialer/telecom/TelecomUtil.java
+++ b/java/com/android/dialer/telecom/TelecomUtil.java
@@ -26,6 +26,7 @@ import android.net.Uri;
 import android.os.Build.VERSION;
 import android.os.Build.VERSION_CODES;
 import android.provider.CallLog.Calls;
+import android.provider.Settings;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.RequiresPermission;
@@ -299,6 +300,11 @@ public abstract class TelecomUtil {
     return instance.isDefaultDialer(context);
   }
 
+  public static boolean isRttEnabled(Context context) {
+    return Settings.System.getInt(context.getContentResolver(), Settings.System.RTT_CALLING_MODE, 0)
+        != 0;
+  }
+
   /** @return the other SIM based PhoneAccountHandle that is not {@code currentAccount} */
   @Nullable
   @RequiresPermission(permission.READ_PHONE_STATE)