diff --git a/res/values/arrays.xml b/res/values/arrays.xml
index 6d8ca3268a2..6b8214c52dd 100644
--- a/res/values/arrays.xml
+++ b/res/values/arrays.xml
@@ -291,4 +291,23 @@
         <item>中文 (繁體)</item>
     </string-array>
 
+    <!-- Authentication Types used in APN editor -->
+    <string-array name="apn_auth_entries">
+        <item>None</item>
+        <item>PAP</item>
+        <item>CHAP</item>
+        <item>PAP or CHAP</item>
+    </string-array>
+
+    <string-array translatable="false" name="apn_auth_values">
+        <!-- Do not translate. -->
+        <item>0</item>
+        <!-- Do not translate. -->
+        <item>1</item>
+        <!-- Do not translate. -->
+        <item>2</item>
+        <!-- Do not translate. -->
+        <item>3</item>
+    </string-array>
+
 </resources>
diff --git a/res/xml/apn_editor.xml b/res/xml/apn_editor.xml
index 4ff801f1319..3835a2c0674 100644
--- a/res/xml/apn_editor.xml
+++ b/res/xml/apn_editor.xml
@@ -101,6 +101,12 @@
         android:singleLine="true"
         android:inputType="number"
         />
+    <ListPreference
+        android:title="@string/apn_auth_type"
+        android:key="auth_type"
+        android:entries="@array/apn_auth_entries"
+        android:entryValues="@array/apn_auth_values"
+        />
     <EditTextPreference
         android:title="@string/apn_type"
         android:dialogTitle="@string/apn_type"
diff --git a/src/com/android/settings/ApnEditor.java b/src/com/android/settings/ApnEditor.java
index 0bd91a825de..0e7ab5efd30 100644
--- a/src/com/android/settings/ApnEditor.java
+++ b/src/com/android/settings/ApnEditor.java
@@ -27,28 +27,31 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.SystemProperties;
 import android.preference.EditTextPreference;
+import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
 import android.provider.Telephony;
-import com.android.internal.telephony.TelephonyProperties;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
 
+import com.android.internal.telephony.TelephonyProperties;
 
-public class ApnEditor extends PreferenceActivity 
-        implements SharedPreferences.OnSharedPreferenceChangeListener {
-    
+
+public class ApnEditor extends PreferenceActivity
+        implements SharedPreferences.OnSharedPreferenceChangeListener,
+                    Preference.OnPreferenceChangeListener {
 
     private final static String TAG = ApnEditor.class.getSimpleName();
-    
+
     private final static String SAVED_POS = "pos";
-    
+    private final static String KEY_AUTH_TYPE = "auth_type";
+
     private static final int MENU_DELETE = Menu.FIRST;
     private static final int MENU_SAVE = Menu.FIRST + 1;
     private static final int MENU_CANCEL = Menu.FIRST + 2;
-    
+
     private static String sNotSet;
     private EditTextPreference mName;
     private EditTextPreference mApn;
@@ -62,16 +65,18 @@ public class ApnEditor extends PreferenceActivity
     private EditTextPreference mMnc;
     private EditTextPreference mMmsProxy;
     private EditTextPreference mMmsPort;
+    private ListPreference mAuthType;
     private EditTextPreference mApnType;
+
     private String mCurMnc;
     private String mCurMcc;
-    
+
     private Uri mUri;
     private Cursor mCursor;
     private boolean mNewApn;
     private boolean mFirstTime;
     private Resources mRes;
-    
+
     /**
      * Standard projection for the interesting columns of a normal note.
      */
@@ -90,9 +95,10 @@ public class ApnEditor extends PreferenceActivity
             Telephony.Carriers.NUMERIC, // 11
             Telephony.Carriers.MMSPROXY,// 12
             Telephony.Carriers.MMSPORT, // 13
-            Telephony.Carriers.TYPE, // 14
+            Telephony.Carriers.AUTH_TYPE, // 14
+            Telephony.Carriers.TYPE, // 15
     };
-    
+
     private static final int ID_INDEX = 0;
     private static final int NAME_INDEX = 1;
     private static final int APN_INDEX = 2;
@@ -106,8 +112,10 @@ public class ApnEditor extends PreferenceActivity
     private static final int MNC_INDEX = 10;
     private static final int MMSPROXY_INDEX = 12;
     private static final int MMSPORT_INDEX = 13;
-    private static final int TYPE_INDEX = 14;
-    
+    private static final int AUTH_TYPE_INDEX = 14;
+    private static final int TYPE_INDEX = 15;
+
+
     @Override
     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);
@@ -128,21 +136,24 @@ public class ApnEditor extends PreferenceActivity
         mMcc = (EditTextPreference) findPreference("apn_mcc");
         mMnc = (EditTextPreference) findPreference("apn_mnc");
         mApnType = (EditTextPreference) findPreference("apn_type");
-        
+
+        mAuthType = (ListPreference) findPreference("auth_type");
+        mAuthType.setOnPreferenceChangeListener(this);
+
         mRes = getResources();
-        
+
         final Intent intent = getIntent();
         final String action = intent.getAction();
 
         mFirstTime = icicle == null;
-        
+
         if (action.equals(Intent.ACTION_EDIT)) {
             mUri = intent.getData();
         } else if (action.equals(Intent.ACTION_INSERT)) {
             if (mFirstTime) {
                 mUri = getContentResolver().insert(intent.getData(), new ContentValues());
             } else {
-                mUri = ContentUris.withAppendedId(Telephony.Carriers.CONTENT_URI, 
+                mUri = ContentUris.withAppendedId(Telephony.Carriers.CONTENT_URI,
                         icicle.getInt(SAVED_POS));
             }
             mNewApn = true;
@@ -155,7 +166,7 @@ public class ApnEditor extends PreferenceActivity
                 finish();
                 return;
             }
-            
+
             // The new entry was created, so assume all will end well and
             // set the result to be returned.
             setResult(RESULT_OK, (new Intent()).setAction(mUri.toString()));
@@ -167,7 +178,7 @@ public class ApnEditor extends PreferenceActivity
 
         mCursor = managedQuery(mUri, sProjection, null, null);
         mCursor.moveToFirst();
-        
+
         fillUi();
     }
 
@@ -176,15 +187,15 @@ public class ApnEditor extends PreferenceActivity
         super.onResume();
         getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
     }
-    
+
     @Override
     public void onPause() {
         getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
-        super.onPause();        
+        super.onPause();
     }
-    
+
     private void fillUi() {
-        if (mFirstTime) {            
+        if (mFirstTime) {
             mFirstTime = false;
             // Fill in all the values from the db in both text editor and summary
             mName.setText(mCursor.getString(NAME_INDEX));
@@ -201,7 +212,7 @@ public class ApnEditor extends PreferenceActivity
             mMnc.setText(mCursor.getString(MNC_INDEX));
             mApnType.setText(mCursor.getString(TYPE_INDEX));
             if (mNewApn) {
-                String numeric = 
+                String numeric =
                     SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC);
                 // MCC is first 3 chars and then in 2 - 3 chars of MNC
                 if (numeric != null && numeric.length() > 4) {
@@ -216,8 +227,13 @@ public class ApnEditor extends PreferenceActivity
                     mCurMcc = mcc;
                 }
             }
+            int authVal = mCursor.getInt(AUTH_TYPE_INDEX);
+            if (authVal != -1) {
+                mAuthType.setValueIndex(authVal);
+            }
+
         }
-        
+
         mName.setSummary(checkNull(mName.getText()));
         mApn.setSummary(checkNull(mApn.getText()));
         mProxy.setSummary(checkNull(mProxy.getText()));
@@ -231,6 +247,33 @@ public class ApnEditor extends PreferenceActivity
         mMcc.setSummary(checkNull(mMcc.getText()));
         mMnc.setSummary(checkNull(mMnc.getText()));
         mApnType.setSummary(checkNull(mApnType.getText()));
+
+        String authVal = mAuthType.getValue();
+        if (authVal != null) {
+            int authValIndex = Integer.parseInt(authVal);
+            mAuthType.setValueIndex(authValIndex);
+
+            String []values = mRes.getStringArray(R.array.apn_auth_entries);
+            mAuthType.setSummary(values[authValIndex]);
+        } else {
+            mAuthType.setSummary(sNotSet);
+        }
+    }
+
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        String key = preference.getKey();
+        if (KEY_AUTH_TYPE.equals(key)) {
+            try {
+                int index = Integer.parseInt((String) newValue);
+                mAuthType.setValueIndex(index);
+
+                String []values = mRes.getStringArray(R.array.apn_auth_entries);
+                mAuthType.setSummary(values[index]);
+            } catch (NumberFormatException e) {
+                return false;
+            }
+        }
+        return true;
     }
 
     @Override
@@ -268,7 +311,7 @@ public class ApnEditor extends PreferenceActivity
         }
         return super.onOptionsItemSelected(item);
     }
-    
+
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         switch (keyCode) {
@@ -288,7 +331,7 @@ public class ApnEditor extends PreferenceActivity
         validateAndSave(true);
         icicle.putInt(SAVED_POS, mCursor.getInt(ID_INDEX));
     }
-    
+
     /**
      * Check the key fields' validity and save if valid.
      * @param force save even if the fields are not valid, if the app is
@@ -300,7 +343,7 @@ public class ApnEditor extends PreferenceActivity
         String apn = checkNotSet(mApn.getText());
         String mcc = checkNotSet(mMcc.getText());
         String mnc = checkNotSet(mMnc.getText());
-        
+
         String errorMsg = null;
         if (name.length() < 1) {
             errorMsg = mRes.getString(R.string.error_name_empty);
@@ -311,20 +354,20 @@ public class ApnEditor extends PreferenceActivity
         } else if ((mnc.length() & 0xFFFE) != 2) {
             errorMsg = mRes.getString(R.string.error_mnc_not23);
         }
-        
+
         if (errorMsg != null && !force) {
             showErrorMessage(errorMsg);
             return false;
         }
-        
+
         if (!mCursor.moveToFirst()) {
             Log.w(TAG,
                     "Could not go to the first row in the Cursor when saving data.");
             return false;
         }
-        
+
         ContentValues values = new ContentValues();
-        
+
         values.put(Telephony.Carriers.NAME, name);
         values.put(Telephony.Carriers.APN, apn);
         values.put(Telephony.Carriers.PROXY, checkNotSet(mProxy.getText()));
@@ -334,22 +377,28 @@ public class ApnEditor extends PreferenceActivity
         values.put(Telephony.Carriers.USER, checkNotSet(mUser.getText()));
         values.put(Telephony.Carriers.SERVER, checkNotSet(mServer.getText()));
         values.put(Telephony.Carriers.PASSWORD, checkNotSet(mPassword.getText()));
-        values.put(Telephony.Carriers.MMSC, checkNotSet(mMmsc.getText()));            
+        values.put(Telephony.Carriers.MMSC, checkNotSet(mMmsc.getText()));
+
+        String authVal = mAuthType.getValue();
+        if (authVal != null) {
+            values.put(Telephony.Carriers.AUTH_TYPE, Integer.parseInt(authVal));
+        }
+
         values.put(Telephony.Carriers.TYPE, checkNotSet(mApnType.getText()));
 
         values.put(Telephony.Carriers.MCC, mcc);
         values.put(Telephony.Carriers.MNC, mnc);
-        
+
         values.put(Telephony.Carriers.NUMERIC, mcc + mnc);
-        
+
         if (mCurMnc != null && mCurMcc != null) {
             if (mCurMnc.equals(mnc) && mCurMcc.equals(mcc)) {
                 values.put(Telephony.Carriers.CURRENT, 1);
             }
         }
-        
+
         getContentResolver().update(mUri, values, null, null);
-        
+
         return true;
     }
 
@@ -365,7 +414,7 @@ public class ApnEditor extends PreferenceActivity
         getContentResolver().delete(mUri, null, null);
         finish();
     }
-    
+
     private String starify(String value) {
         if (value == null || value.length() == 0) {
             return sNotSet;
@@ -377,7 +426,7 @@ public class ApnEditor extends PreferenceActivity
             return new String(password);
         }
     }
-    
+
     private String checkNull(String value) {
         if (value == null || value.length() == 0) {
             return sNotSet;
@@ -385,7 +434,7 @@ public class ApnEditor extends PreferenceActivity
             return value;
         }
     }
-    
+
     private String checkNotSet(String value) {
         if (value == null || value.equals(sNotSet)) {
             return "";
@@ -393,7 +442,7 @@ public class ApnEditor extends PreferenceActivity
             return value;
         }
     }
-    
+
     public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
         Preference pref = findPreference(key);
         if (pref != null) {