diff --git a/res/values/strings.xml b/res/values/strings.xml
index bf5abca..d3196b9 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -381,4 +381,6 @@
     <string name="developer_enhanced_call_blocking" translatable="false">Enhanced Call Blocking</string>
     <!-- Button label for generic cancel action [CHAR LIMIT=20] -->
     <string name="cancel">Cancel</string>
+    <!-- Button label for generic back action [CHAR LIMIT=20] -->
+    <string name="back">Back</string>
 </resources>
diff --git a/src/com/android/server/telecom/RespondViaSmsSettings.java b/src/com/android/server/telecom/RespondViaSmsSettings.java
index 661038b..d038a6e 100755
--- a/src/com/android/server/telecom/RespondViaSmsSettings.java
+++ b/src/com/android/server/telecom/RespondViaSmsSettings.java
@@ -89,6 +89,8 @@
         if (actionBar != null) {
             // android.R.id.home will be triggered in onOptionsItemSelected()
             actionBar.setDisplayHomeAsUpEnabled(true);
+            // set the talkback voice prompt to "Back" instead of "Navigate Up"
+            actionBar.setHomeActionContentDescription(R.string.back);
         }
     }
 
diff --git a/src/com/android/server/telecom/settings/BlockedNumbersActivity.java b/src/com/android/server/telecom/settings/BlockedNumbersActivity.java
index bc54e11..6e2eb97 100644
--- a/src/com/android/server/telecom/settings/BlockedNumbersActivity.java
+++ b/src/com/android/server/telecom/settings/BlockedNumbersActivity.java
@@ -101,6 +101,8 @@
         ActionBar actionBar = getActionBar();
         if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
+            // set the talkback voice prompt to "Back" instead of "Navigate Up"
+            actionBar.setHomeActionContentDescription(R.string.back);
         }
 
         if (!BlockedNumberContract.canCurrentUserBlockNumbers(this)) {