diff --git a/java/com/android/incallui/CallCardPresenter.java b/java/com/android/incallui/CallCardPresenter.java
index 653b51a..15b04ea 100644
--- a/java/com/android/incallui/CallCardPresenter.java
+++ b/java/com/android/incallui/CallCardPresenter.java
@@ -52,6 +52,7 @@
 import com.android.dialer.logging.Logger;
 import com.android.dialer.multimedia.MultimediaData;
 import com.android.dialer.oem.MotorolaUtils;
+import com.android.dialer.phonenumberutil.PhoneNumberHelper;
 import com.android.dialer.postcall.PostCall;
 import com.android.incallui.ContactInfoCache.ContactCacheEntry;
 import com.android.incallui.ContactInfoCache.ContactInfoCacheCallback;
@@ -466,7 +467,8 @@
                   getCallStateIcon(),
                   getGatewayNumber(),
                   shouldShowCallSubject(mPrimary) ? mPrimary.getCallSubject() : null,
-                  mPrimary.getCallbackNumber(),
+                  PhoneNumberHelper.formatNumber(
+                      mPrimary.getCallbackNumber(), mPrimary.getSimCountryIso()),
                   mPrimary.hasProperty(Details.PROPERTY_WIFI),
                   mPrimary.isConferenceCall()
                       && !mPrimary.hasProperty(Details.PROPERTY_GENERIC_CONFERENCE),
diff --git a/java/com/android/incallui/call/DialerCall.java b/java/com/android/incallui/call/DialerCall.java
index a9bad5b..4f31dad 100644
--- a/java/com/android/incallui/call/DialerCall.java
+++ b/java/com/android/incallui/call/DialerCall.java
@@ -1182,6 +1182,17 @@
     return callbackNumber;
   }
 
+  public String getSimCountryIso() {
+    String simCountryIso =
+        TelephonyManagerCompat.getTelephonyManagerForPhoneAccountHandle(
+                mContext, getAccountHandle())
+            .getSimCountryIso();
+    if (!TextUtils.isEmpty(simCountryIso)) {
+      simCountryIso = simCountryIso.toUpperCase(Locale.US);
+    }
+    return simCountryIso;
+  }
+
   @Override
   public void onVideoTechStateChanged() {
     update();
diff --git a/java/com/android/incallui/contactgrid/BottomRow.java b/java/com/android/incallui/contactgrid/BottomRow.java
index 6068cc0..91f08ef 100644
--- a/java/com/android/incallui/contactgrid/BottomRow.java
+++ b/java/com/android/incallui/contactgrid/BottomRow.java
@@ -103,10 +103,7 @@
       }
     } else if (!TextUtils.isEmpty(state.callbackNumber)) {
       // This is used for carriers like Project Fi to show the callback number for emergency calls.
-      label =
-          context.getString(
-              R.string.contact_grid_callback_number,
-              PhoneNumberUtils.formatNumber(state.callbackNumber));
+      label = context.getString(R.string.contact_grid_callback_number, state.callbackNumber);
       isTimerVisible = false;
     } else {
       label = getLabelForPhoneNumber(primaryInfo);
diff --git a/java/com/android/incallui/contactgrid/res/values/strings.xml b/java/com/android/incallui/contactgrid/res/values/strings.xml
index 63037dc..eba4abf 100644
--- a/java/com/android/incallui/contactgrid/res/values/strings.xml
+++ b/java/com/android/incallui/contactgrid/res/values/strings.xml
@@ -80,8 +80,7 @@
   <!-- Displayed in the answer call screen for incoming spam calls. -->
   <string name="contact_grid_incoming_suspected_spam">Suspected spam caller</string>
 
-  <!-- In-call screen: string shown to the user when their outgoing number is different than the
-     number reported by TelephonyManager#getLine1Number(). This is used for carriers like
-     Project Fi so that users can give their number to emergency responders. -->
-  <string name="contact_grid_callback_number">Callback number: <xliff:g id="dark_number">%1$s</xliff:g></string>
+  <!-- In-call screen: phone number of the device shown to the users so that users can give their
+      number to emergency responders. -->
+  <string name="contact_grid_callback_number">This phone\'s number: <xliff:g id="light_number">%1$s</xliff:g></string>
 </resources>