diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 8163a6642089b..e99465d587648 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -8832,7 +8832,10 @@ public class TelephonyManager {
     @Deprecated
     public boolean isTtyModeSupported() {
         try {
-            TelecomManager telecomManager = TelecomManager.from(mContext);
+            TelecomManager telecomManager = null;
+            if (mContext != null) {
+                telecomManager = mContext.getSystemService(TelecomManager.class);
+            }
             if (telecomManager != null) {
                 return telecomManager.isTtySupported();
             }