/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.internal.telephony.cdma;

import android.app.ActivityManagerNative;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.SQLException;
import android.net.Uri;
import android.os.AsyncResult;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.os.Registrant;
import android.os.RegistrantList;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.preference.PreferenceManager;
import android.provider.Settings;
import android.provider.Telephony;
import android.telephony.CellLocation;
import android.telephony.PhoneNumberUtils;
import android.telephony.ServiceState;
import android.telephony.SubscriptionManager;
import android.telephony.cdma.CdmaCellLocation;
import android.text.TextUtils;
import android.telephony.Rlog;

import com.android.ims.ImsManager;
import com.android.internal.telephony.Call;
import com.android.internal.telephony.CallStateException;
import com.android.internal.telephony.CallTracker;
import com.android.internal.telephony.CommandException;
import com.android.internal.telephony.CommandsInterface;
import com.android.internal.telephony.Connection;
import com.android.internal.telephony.IccPhoneBookInterfaceManager;
import com.android.internal.telephony.MccTable;
import com.android.internal.telephony.MmiCode;
import com.android.internal.telephony.PhoneBase;
import com.android.internal.telephony.PhoneConstants;
import com.android.internal.telephony.PhoneNotifier;
import com.android.internal.telephony.PhoneProxy;
import com.android.internal.telephony.PhoneSubInfo;
import com.android.internal.telephony.ServiceStateTracker;
import com.android.internal.telephony.TelephonyIntents;
import com.android.internal.telephony.TelephonyProperties;
import com.android.internal.telephony.UUSInfo;
import com.android.internal.telephony.dataconnection.DcTracker;
import com.android.internal.telephony.imsphone.ImsPhone;
import com.android.internal.telephony.uicc.IccException;
import com.android.internal.telephony.uicc.IccRecords;
import com.android.internal.telephony.uicc.RuimRecords;
import com.android.internal.telephony.uicc.UiccCard;
import com.android.internal.telephony.uicc.UiccCardApplication;
import com.android.internal.telephony.uicc.UiccController;

import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import static com.android.internal.telephony.TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA;
import static com.android.internal.telephony.TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY;
import static com.android.internal.telephony.TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC;

/**
 * {@hide}
 */
public class CDMAPhone extends PhoneBase {
    static final String LOG_TAG = "CDMAPhone";
    private static final boolean DBG = true;
    private static final boolean VDBG = false; /* STOP SHIP if true */

    // Default Emergency Callback Mode exit timer
    private static final int DEFAULT_ECM_EXIT_TIMER_VALUE = 300000;

    static final String VM_COUNT_CDMA = "vm_count_key_cdma";
    private static final String VM_NUMBER_CDMA = "vm_number_key_cdma";
    private String mVmNumber = null;

    static final int RESTART_ECM_TIMER = 0; // restart Ecm timer
    static final int CANCEL_ECM_TIMER = 1; // cancel Ecm timer

    // Instance Variables
    CdmaCallTracker mCT;
    CdmaServiceStateTracker mSST;
    CdmaSubscriptionSourceManager mCdmaSSM;
    ArrayList <CdmaMmiCode> mPendingMmis = new ArrayList<CdmaMmiCode>();
    RuimPhoneBookInterfaceManager mRuimPhoneBookInterfaceManager;
    int mCdmaSubscriptionSource =
            CdmaSubscriptionSourceManager.SUBSCRIPTION_SOURCE_UNKNOWN;
    PhoneSubInfo mSubInfo;
    EriManager mEriManager;
    WakeLock mWakeLock;

    // mEriFileLoadedRegistrants are informed after the ERI text has been loaded
    private final RegistrantList mEriFileLoadedRegistrants = new RegistrantList();

    // mEcmTimerResetRegistrants are informed after Ecm timer is canceled or re-started
    private final RegistrantList mEcmTimerResetRegistrants = new RegistrantList();

    // mEcmExitRespRegistrant is informed after the phone has been exited
    //the emergency callback mode
    //keep track of if phone is in emergency callback mode
    protected boolean mIsPhoneInEcmState;
    private Registrant mEcmExitRespRegistrant;
    protected String mImei;
    protected String mImeiSv;
    private String mEsn;
    private String mMeid;
    // string to define how the carrier specifies its own ota sp number
    protected String mCarrierOtaSpNumSchema;

    // A runnable which is used to automatically exit from Ecm after a period of time.
    private Runnable mExitEcmRunnable = new Runnable() {
        @Override
        public void run() {
            exitEmergencyCallbackMode();
        }
    };

    Registrant mPostDialHandler;

    static String PROPERTY_CDMA_HOME_OPERATOR_NUMERIC = "ro.cdma.home.operator.numeric";

    // Constructors
    public CDMAPhone(Context context, CommandsInterface ci, PhoneNotifier notifier) {
        super("CDMA", notifier, context, ci, false);
        initSstIcc();
        init(context, notifier);
    }

    public CDMAPhone(Context context, CommandsInterface ci, PhoneNotifier notifier,
            int phoneId) {
        super("CDMA", notifier, context, ci, false, phoneId);
        initSstIcc();
        init(context, notifier);
    }

    public CDMAPhone(Context context, CommandsInterface ci, PhoneNotifier notifier,
            boolean unitTestMode) {
        super("CDMA", notifier, context, ci, unitTestMode);
        initSstIcc();
        init(context, notifier);
    }

    protected void initSstIcc() {
        mSST = new CdmaServiceStateTracker(this);
    }

    protected void init(Context context, PhoneNotifier notifier) {
        mCi.setPhoneType(PhoneConstants.PHONE_TYPE_CDMA);
        mCT = new CdmaCallTracker(this);
        mCdmaSSM = CdmaSubscriptionSourceManager.getInstance(context, mCi, this,
                EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED, null);
        mDcTracker = new DcTracker(this);
        mRuimPhoneBookInterfaceManager = new RuimPhoneBookInterfaceManager(this);
        mSubInfo = new PhoneSubInfo(this);
        mEriManager = new EriManager(this, context, EriManager.ERI_FROM_XML);

        mCi.registerForAvailable(this, EVENT_RADIO_AVAILABLE, null);
        mCi.registerForOffOrNotAvailable(this, EVENT_RADIO_OFF_OR_NOT_AVAILABLE, null);
        mCi.registerForOn(this, EVENT_RADIO_ON, null);
        mCi.setOnSuppServiceNotification(this, EVENT_SSN, null);
        mSST.registerForNetworkAttached(this, EVENT_REGISTERED_TO_NETWORK, null);
        mCi.setEmergencyCallbackMode(this, EVENT_EMERGENCY_CALLBACK_MODE_ENTER, null);
        mCi.registerForExitEmergencyCallbackMode(this, EVENT_EXIT_EMERGENCY_CALLBACK_RESPONSE,
                null);

        PowerManager pm
            = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
        mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,LOG_TAG);

        //Change the system setting
        SystemProperties.set(TelephonyProperties.CURRENT_ACTIVE_PHONE,
                Integer.toString(PhoneConstants.PHONE_TYPE_CDMA));

        // This is needed to handle phone process crashes
        String inEcm=SystemProperties.get(TelephonyProperties.PROPERTY_INECM_MODE, "false");
        mIsPhoneInEcmState = inEcm.equals("true");
        if (mIsPhoneInEcmState) {
            // Send a message which will invoke handleExitEmergencyCallbackMode
            mCi.exitEmergencyCallbackMode(obtainMessage(EVENT_EXIT_EMERGENCY_CALLBACK_RESPONSE));
        }

        // get the string that specifies the carrier OTA Sp number
        mCarrierOtaSpNumSchema = SystemProperties.get(
                TelephonyProperties.PROPERTY_OTASP_NUM_SCHEMA,"");

        // Sets operator properties by retrieving from build-time system property
        String operatorAlpha = SystemProperties.get("ro.cdma.home.operator.alpha");
        String operatorNumeric = SystemProperties.get(PROPERTY_CDMA_HOME_OPERATOR_NUMERIC);
        log("init: operatorAlpha='" + operatorAlpha
                + "' operatorNumeric='" + operatorNumeric + "'");
        if (mUiccController.getUiccCardApplication(mPhoneId, UiccController.APP_FAM_3GPP) == null) {
            log("init: APP_FAM_3GPP == NULL");
            if (!TextUtils.isEmpty(operatorAlpha)) {
                log("init: set 'gsm.sim.operator.alpha' to operator='" + operatorAlpha + "'");
                setSystemProperty(PROPERTY_ICC_OPERATOR_ALPHA, operatorAlpha);
            }
            if (!TextUtils.isEmpty(operatorNumeric)) {
                log("init: set 'gsm.sim.operator.numeric' to operator='" + operatorNumeric + "'");
                log("update icc_operator_numeric=" + operatorNumeric);
                setSystemProperty(PROPERTY_ICC_OPERATOR_NUMERIC, operatorNumeric);
            }
            setIsoCountryProperty(operatorNumeric);
        }

        // Sets current entry in the telephony carrier table
        updateCurrentCarrierInProvider(operatorNumeric);

        // Notify voicemails.
        notifier.notifyMessageWaitingChanged(this);
    }

    @Override
    public void dispose() {
        synchronized(PhoneProxy.lockForRadioTechnologyChange) {
            super.dispose();
            log("dispose");

            //Unregister from all former registered events
            unregisterForRuimRecordEvents();
            mCi.unregisterForAvailable(this); //EVENT_RADIO_AVAILABLE
            mCi.unregisterForOffOrNotAvailable(this); //EVENT_RADIO_OFF_OR_NOT_AVAILABLE
            mCi.unregisterForOn(this); //EVENT_RADIO_ON
            mSST.unregisterForNetworkAttached(this); //EVENT_REGISTERED_TO_NETWORK
            mCi.unSetOnSuppServiceNotification(this);
            mCi.unregisterForExitEmergencyCallbackMode(this);
            removeCallbacks(mExitEcmRunnable);

            mPendingMmis.clear();

            //Force all referenced classes to unregister their former registered events
            mCT.dispose();
            mDcTracker.dispose();
            mSST.dispose();
            mCdmaSSM.dispose(this);
            mRuimPhoneBookInterfaceManager.dispose();
            mSubInfo.dispose();
            mEriManager.dispose();
        }
    }

    @Override
    public void removeReferences() {
        log("removeReferences");
        mRuimPhoneBookInterfaceManager = null;
        mSubInfo = null;
        mCT = null;
        mSST = null;
        mEriManager = null;
        mExitEcmRunnable = null;

        super.removeReferences();
    }

    @Override
    protected void finalize() {
        if(DBG) Rlog.d(LOG_TAG, "CDMAPhone finalized");
        if (mWakeLock.isHeld()) {
            Rlog.e(LOG_TAG, "UNEXPECTED; mWakeLock is held when finalizing.");
            mWakeLock.release();
        }
    }

    @Override
    public ServiceState getServiceState() {
        if (mSST == null || mSST.mSS.getState() != ServiceState.STATE_IN_SERVICE) {
            if (mImsPhone != null &&
                    mImsPhone.getServiceState().getState() == ServiceState.STATE_IN_SERVICE) {
                return mImsPhone.getServiceState();
            }
        }

        if (mSST != null) {
            return mSST.mSS;
        } else {
            // avoid potential NPE in EmergencyCallHelper during Phone switch
            return new ServiceState();
        }
    }


    @Override
    public CallTracker getCallTracker() {
        return mCT;
    }

    @Override
    public PhoneConstants.State getState() {
        return mCT.mState;
    }

    @Override
    public ServiceStateTracker getServiceStateTracker() {
        return mSST;
    }

    @Override
    public int getPhoneType() {
        return PhoneConstants.PHONE_TYPE_CDMA;
    }

    @Override
    public boolean canTransfer() {
        Rlog.e(LOG_TAG, "canTransfer: not possible in CDMA");
        return false;
    }

    @Override
    public Call getRingingCall() {
        ImsPhone imPhone = mImsPhone;
        if ( mCT.mRingingCall != null && mCT.mRingingCall.isRinging() ) {
            return mCT.mRingingCall;
        } else if ( imPhone != null ) {
            return imPhone.getRingingCall();
        }
        return mCT.mRingingCall;
    }

    @Override
    public void setMute(boolean muted) {
        mCT.setMute(muted);
    }

    @Override
    public boolean getMute() {
        return mCT.getMute();
    }

    @Override
    public void conference() {
        if (mImsPhone != null && mImsPhone.canConference()) {
            log("conference() - delegated to IMS phone");
            mImsPhone.conference();
            return;
        }
        // three way calls in CDMA will be handled by feature codes
        Rlog.e(LOG_TAG, "conference: not possible in CDMA");
    }

    @Override
    public void enableEnhancedVoicePrivacy(boolean enable, Message onComplete) {
        mCi.setPreferredVoicePrivacy(enable, onComplete);
    }

    @Override
    public void getEnhancedVoicePrivacy(Message onComplete) {
        mCi.getPreferredVoicePrivacy(onComplete);
    }

    @Override
    public void clearDisconnected() {
        mCT.clearDisconnected();
    }

    @Override
    public DataActivityState getDataActivityState() {
        DataActivityState ret = DataActivityState.NONE;

        if (mSST.getCurrentDataConnectionState() == ServiceState.STATE_IN_SERVICE) {

            switch (mDcTracker.getActivity()) {
                case DATAIN:
                    ret = DataActivityState.DATAIN;
                break;

                case DATAOUT:
                    ret = DataActivityState.DATAOUT;
                break;

                case DATAINANDOUT:
                    ret = DataActivityState.DATAINANDOUT;
                break;

                case DORMANT:
                    ret = DataActivityState.DORMANT;
                break;

                default:
                    ret = DataActivityState.NONE;
                break;
            }
        }
        return ret;
    }

    @Override
    public Connection
    dial (String dialString, int videoState) throws CallStateException {
        ImsPhone imsPhone = mImsPhone;

        boolean imsUseEnabled =
                ImsManager.isEnhanced4gLteModeSettingEnabledByPlatform(mContext) &&
                ImsManager.isEnhanced4gLteModeSettingEnabledByUser(mContext);
        if (!imsUseEnabled) {
            Rlog.w(LOG_TAG, "IMS is disabled: forced to CS");
        }

        if (imsUseEnabled && imsPhone != null
                && ((imsPhone.getServiceState().getState() == ServiceState.STATE_IN_SERVICE
                && !PhoneNumberUtils.isEmergencyNumber(dialString))
                || (PhoneNumberUtils.isEmergencyNumber(dialString)
                && mContext.getResources().getBoolean(
                        com.android.internal.R.bool.useImsAlwaysForEmergencyCall))) ) {
            try {
                if (DBG) Rlog.d(LOG_TAG, "Trying IMS PS call");
                return imsPhone.dial(dialString, videoState);
            } catch (CallStateException e) {
                if (DBG) Rlog.d(LOG_TAG, "IMS PS call exception " + e);
                if (!ImsPhone.CS_FALLBACK.equals(e.getMessage())) {
                    CallStateException ce = new CallStateException(e.getMessage());
                    ce.setStackTrace(e.getStackTrace());
                    throw ce;
                }
            }
        }

        if (DBG) Rlog.d(LOG_TAG, "Trying (non-IMS) CS call");
        return dialInternal(dialString, null, videoState);
    }


    @Override
    protected Connection
    dialInternal (String dialString, UUSInfo uusInfo,
            int videoState) throws CallStateException {
        // Need to make sure dialString gets parsed properly
        String newDialString = PhoneNumberUtils.stripSeparators(dialString);
        return mCT.dial(newDialString);
    }

    @Override
    public Connection dial(String dialString, UUSInfo uusInfo, int videoState)
            throws CallStateException {
        throw new CallStateException("Sending UUS information NOT supported in CDMA!");
    }

    @Override
    public boolean
    getMessageWaitingIndicator() {
        return (getVoiceMessageCount() > 0);
    }

    @Override
    public List<? extends MmiCode>
    getPendingMmiCodes() {
        return mPendingMmis;
    }

    @Override
    public void registerForSuppServiceNotification(
            Handler h, int what, Object obj) {
        Rlog.e(LOG_TAG, "method registerForSuppServiceNotification is NOT supported in CDMA!");
    }

    @Override
    public CdmaCall getBackgroundCall() {
        return mCT.mBackgroundCall;
    }

    @Override
    public boolean handleInCallMmiCommands(String dialString) {
        Rlog.e(LOG_TAG, "method handleInCallMmiCommands is NOT supported in CDMA!");
        return false;
    }

    boolean isInCall() {
        CdmaCall.State foregroundCallState = getForegroundCall().getState();
        CdmaCall.State backgroundCallState = getBackgroundCall().getState();
        CdmaCall.State ringingCallState = getRingingCall().getState();

        return (foregroundCallState.isAlive() || backgroundCallState.isAlive() || ringingCallState
                .isAlive());
    }

    @Override
    public void unregisterForSuppServiceNotification(Handler h) {
        Rlog.e(LOG_TAG, "method unregisterForSuppServiceNotification is NOT supported in CDMA!");
    }

    @Override
    public void
    acceptCall(int videoState) throws CallStateException {
        ImsPhone imsPhone = mImsPhone;
        if ( imsPhone != null && imsPhone.getRingingCall().isRinging() ) {
            imsPhone.acceptCall(videoState);
        } else {
            mCT.acceptCall();
        }
    }

    @Override
    public void
    rejectCall() throws CallStateException {
        mCT.rejectCall();
    }

    @Override
    public void
    switchHoldingAndActive() throws CallStateException {
        mCT.switchWaitingOrHoldingAndActive();
    }

    @Override
    public String getIccSerialNumber() {
        IccRecords r = mIccRecords.get();
        if (r == null) {
            // to get ICCID form SIMRecords because it is on MF.
            r = mUiccController.getIccRecords(mPhoneId, UiccController.APP_FAM_3GPP);
        }
        return (r != null) ? r.getIccId() : null;
    }

    @Override
    public String getLine1Number() {
        return mSST.getMdnNumber();
    }

    @Override
    public String getCdmaPrlVersion(){
        return mSST.getPrlVersion();
    }

    @Override
    public String getCdmaMin() {
        return mSST.getCdmaMin();
    }

    @Override
    public boolean isMinInfoReady() {
        return mSST.isMinInfoReady();
    }

    @Override
    public void getCallWaiting(Message onComplete) {
        mCi.queryCallWaiting(CommandsInterface.SERVICE_CLASS_VOICE, onComplete);
    }

    @Override
    public void
    setRadioPower(boolean power) {
        mSST.setRadioPower(power);
    }

    @Override
    public String getEsn() {
        return mEsn;
    }

    @Override
    public String getMeid() {
        return mMeid;
    }

    //returns MEID or ESN in CDMA
    @Override
    public String getDeviceId() {
        String id = getMeid();
        if ((id == null) || id.matches("^0*$")) {
            Rlog.d(LOG_TAG, "getDeviceId(): MEID is not initialized use ESN");
            id = getEsn();
        }
        return id;
    }

    @Override
    public String getDeviceSvn() {
        Rlog.d(LOG_TAG, "getDeviceSvn(): return 0");
        return "0";
    }

    @Override
    public String getSubscriberId() {
        return mSST.getImsi();
    }

    @Override
    public String getGroupIdLevel1() {
        Rlog.e(LOG_TAG, "GID1 is not available in CDMA");
        return null;
    }

    @Override
    public String getImei() {
        Rlog.e(LOG_TAG, "getImei() called for CDMAPhone");
        return mImei;
    }

    @Override
    public boolean canConference() {
        if (mImsPhone != null && mImsPhone.canConference()) {
            return true;
        }
        Rlog.e(LOG_TAG, "canConference: not possible in CDMA");
        return false;
    }

    @Override
    public CellLocation getCellLocation() {
        CdmaCellLocation loc = mSST.mCellLoc;

        int mode = Settings.Secure.getInt(getContext().getContentResolver(),
                Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF);
        if (mode == Settings.Secure.LOCATION_MODE_OFF) {
            // clear lat/long values for location privacy
            CdmaCellLocation privateLoc = new CdmaCellLocation();
            privateLoc.setCellLocationData(loc.getBaseStationId(),
                    CdmaCellLocation.INVALID_LAT_LONG,
                    CdmaCellLocation.INVALID_LAT_LONG,
                    loc.getSystemId(), loc.getNetworkId());
            loc = privateLoc;
        }
        return loc;
    }

    @Override
    public CdmaCall getForegroundCall() {
        return mCT.mForegroundCall;
    }

    @Override
    public void setOnPostDialCharacter(Handler h, int what, Object obj) {
        mPostDialHandler = new Registrant(h, what, obj);
    }

    @Override
    public boolean handlePinMmi(String dialString) {
        CdmaMmiCode mmi = CdmaMmiCode.newFromDialString(dialString, this, mUiccApplication.get());

        if (mmi == null) {
            Rlog.e(LOG_TAG, "Mmi is NULL!");
            return false;
        } else if (mmi.isPinPukCommand()) {
            mPendingMmis.add(mmi);
            mMmiRegistrants.notifyRegistrants(new AsyncResult(null, mmi, null));
            mmi.processCode();
            return true;
        }
        Rlog.e(LOG_TAG, "Unrecognized mmi!");
        return false;
    }

    /**
     * Removes the given MMI from the pending list and notifies registrants that
     * it is complete.
     *
     * @param mmi MMI that is done
     */
    void onMMIDone(CdmaMmiCode mmi) {
        /*
         * Only notify complete if it's on the pending list. Otherwise, it's
         * already been handled (eg, previously canceled).
         */
        if (mPendingMmis.remove(mmi)) {
            mMmiCompleteRegistrants.notifyRegistrants(new AsyncResult(null, mmi, null));
        }
    }

    @Override
    public void setLine1Number(String alphaTag, String number, Message onComplete) {
        Rlog.e(LOG_TAG, "setLine1Number: not possible in CDMA");
    }

    @Override
    public void setCallWaiting(boolean enable, Message onComplete) {
        Rlog.e(LOG_TAG, "method setCallWaiting is NOT supported in CDMA!");
    }

    @Override
    public void updateServiceLocation() {
        mSST.enableSingleLocationUpdate();
    }

    @Override
    public void setDataRoamingEnabled(boolean enable) {
        mDcTracker.setDataOnRoamingEnabled(enable);
    }

    @Override
    public void registerForCdmaOtaStatusChange(Handler h, int what, Object obj) {
        mCi.registerForCdmaOtaProvision(h, what, obj);
    }

    @Override
    public void unregisterForCdmaOtaStatusChange(Handler h) {
        mCi.unregisterForCdmaOtaProvision(h);
    }

    @Override
    public void registerForSubscriptionInfoReady(Handler h, int what, Object obj) {
        mSST.registerForSubscriptionInfoReady(h, what, obj);
    }

    @Override
    public void unregisterForSubscriptionInfoReady(Handler h) {
        mSST.unregisterForSubscriptionInfoReady(h);
    }

    @Override
    public void setOnEcbModeExitResponse(Handler h, int what, Object obj) {
        mEcmExitRespRegistrant = new Registrant (h, what, obj);
    }

    @Override
    public void unsetOnEcbModeExitResponse(Handler h) {
        mEcmExitRespRegistrant.clear();
    }

    @Override
    public void registerForCallWaiting(Handler h, int what, Object obj) {
        mCT.registerForCallWaiting(h, what, obj);
    }

    @Override
    public void unregisterForCallWaiting(Handler h) {
        mCT.unregisterForCallWaiting(h);
    }

    @Override
    public void
    getNeighboringCids(Message response) {
        /*
         * This is currently not implemented.  At least as of June
         * 2009, there is no neighbor cell information available for
         * CDMA because some party is resisting making this
         * information readily available.  Consequently, calling this
         * function can have no useful effect.  This situation may
         * (and hopefully will) change in the future.
         */
        if (response != null) {
            CommandException ce = new CommandException(
                    CommandException.Error.REQUEST_NOT_SUPPORTED);
            AsyncResult.forMessage(response).exception = ce;
            response.sendToTarget();
        }
    }

    @Override
    public PhoneConstants.DataState getDataConnectionState(String apnType) {
        PhoneConstants.DataState ret = PhoneConstants.DataState.DISCONNECTED;

        if (mSST == null) {
             // Radio Technology Change is ongoning, dispose() and removeReferences() have
             // already been called

             ret = PhoneConstants.DataState.DISCONNECTED;
        } else if (mSST.getCurrentDataConnectionState() != ServiceState.STATE_IN_SERVICE) {
            // If we're out of service, open TCP sockets may still work
            // but no data will flow
            ret = PhoneConstants.DataState.DISCONNECTED;
        } else if (mDcTracker.isApnTypeEnabled(apnType) == false ||
                mDcTracker.isApnTypeActive(apnType) == false) {
            ret = PhoneConstants.DataState.DISCONNECTED;
        } else {
            switch (mDcTracker.getState(apnType)) {
                case RETRYING:
                case FAILED:
                case IDLE:
                    ret = PhoneConstants.DataState.DISCONNECTED;
                break;

                case CONNECTED:
                case DISCONNECTING:
                    if ( mCT.mState != PhoneConstants.State.IDLE
                            && !mSST.isConcurrentVoiceAndDataAllowed()) {
                        ret = PhoneConstants.DataState.SUSPENDED;
                    } else {
                        ret = PhoneConstants.DataState.CONNECTED;
                    }
                break;

                case CONNECTING:
                case SCANNING:
                    ret = PhoneConstants.DataState.CONNECTING;
                break;
            }
        }

        log("getDataConnectionState apnType=" + apnType + " ret=" + ret);
        return ret;
    }

    @Override
    public void sendUssdResponse(String ussdMessge) {
        Rlog.e(LOG_TAG, "sendUssdResponse: not possible in CDMA");
    }

    @Override
    public void sendDtmf(char c) {
        if (!PhoneNumberUtils.is12Key(c)) {
            Rlog.e(LOG_TAG,
                    "sendDtmf called with invalid character '" + c + "'");
        } else {
            if (mCT.mState ==  PhoneConstants.State.OFFHOOK) {
                mCi.sendDtmf(c, null);
            }
        }
    }

    @Override
    public void startDtmf(char c) {
        if (!PhoneNumberUtils.is12Key(c)) {
            Rlog.e(LOG_TAG,
                    "startDtmf called with invalid character '" + c + "'");
        } else {
            mCi.startDtmf(c, null);
        }
    }

    @Override
    public void stopDtmf() {
        mCi.stopDtmf(null);
    }

    @Override
    public void sendBurstDtmf(String dtmfString, int on, int off, Message onComplete) {
        boolean check = true;
        for (int itr = 0;itr < dtmfString.length(); itr++) {
            if (!PhoneNumberUtils.is12Key(dtmfString.charAt(itr))) {
                Rlog.e(LOG_TAG,
                        "sendDtmf called with invalid character '" + dtmfString.charAt(itr)+ "'");
                check = false;
                break;
            }
        }
        if ((mCT.mState ==  PhoneConstants.State.OFFHOOK)&&(check)) {
            mCi.sendBurstDtmf(dtmfString, on, off, onComplete);
        }
     }

    @Override
    public void getAvailableNetworks(Message response) {
        Rlog.e(LOG_TAG, "getAvailableNetworks: not possible in CDMA");
    }

    @Override
    public void setOutgoingCallerIdDisplay(int commandInterfaceCLIRMode, Message onComplete) {
        Rlog.e(LOG_TAG, "setOutgoingCallerIdDisplay: not possible in CDMA");
    }

    @Override
    public void enableLocationUpdates() {
        mSST.enableLocationUpdates();
    }

    @Override
    public void disableLocationUpdates() {
        mSST.disableLocationUpdates();
    }

    @Override
    public void getDataCallList(Message response) {
        mCi.getDataCallList(response);
    }

    @Override
    public boolean getDataRoamingEnabled() {
        return mDcTracker.getDataOnRoamingEnabled();
    }

    @Override
    public void setDataEnabled(boolean enable) {
        mDcTracker.setDataEnabled(enable);
    }

    @Override
    public boolean getDataEnabled() {
        return mDcTracker.getDataEnabled();
    }

    @Override
    public void setVoiceMailNumber(String alphaTag,
                                   String voiceMailNumber,
                                   Message onComplete) {
        Message resp;
        mVmNumber = voiceMailNumber;
        resp = obtainMessage(EVENT_SET_VM_NUMBER_DONE, 0, 0, onComplete);
        IccRecords r = mIccRecords.get();
        if (r != null) {
            r.setVoiceMailNumber(alphaTag, mVmNumber, resp);
        }
    }

    @Override
    public String getVoiceMailNumber() {
        String number = null;
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getContext());
        // TODO: The default value of voicemail number should be read from a system property

        // Read platform settings for dynamic voicemail number
        if (getContext().getResources().getBoolean(com.android.internal
                .R.bool.config_telephony_use_own_number_for_voicemail)) {
            number = sp.getString(VM_NUMBER_CDMA + getPhoneId(), getLine1Number());
        } else {
            number = sp.getString(VM_NUMBER_CDMA + getPhoneId(), "*86");
        }
        return number;
    }

    /* Returns Number of Voicemails
     * @hide
     */
    @Override
    public int getVoiceMessageCount() {
        IccRecords r = mIccRecords.get();
        int voicemailCount =  (r != null) ? r.getVoiceMessageCount() : 0;
        // If mRuimRecords.getVoiceMessageCount returns zero, then there is possibility
        // that phone was power cycled and would have lost the voicemail count.
        // So get the count from preferences.
        if (voicemailCount == 0) {
            SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getContext());
            voicemailCount = sp.getInt(VM_COUNT_CDMA, 0);
        }
        return voicemailCount;
    }

    @Override
    public String getVoiceMailAlphaTag() {
        // TODO: Where can we get this value has to be clarified with QC.
        String ret = "";//TODO: Remove = "", if we know where to get this value.

        //ret = mSIMRecords.getVoiceMailAlphaTag();

        if (ret == null || ret.length() == 0) {
            return mContext.getText(
                com.android.internal.R.string.defaultVoiceMailAlphaTag).toString();
        }

        return ret;
    }

    @Override
    public void getCallForwardingOption(int commandInterfaceCFReason, Message onComplete) {
        Rlog.e(LOG_TAG, "getCallForwardingOption: not possible in CDMA");
    }

    @Override
    public void setCallForwardingOption(int commandInterfaceCFAction,
            int commandInterfaceCFReason,
            String dialingNumber,
            int timerSeconds,
            Message onComplete) {
        Rlog.e(LOG_TAG, "setCallForwardingOption: not possible in CDMA");
    }

    @Override
    public void
    getOutgoingCallerIdDisplay(Message onComplete) {
        Rlog.e(LOG_TAG, "getOutgoingCallerIdDisplay: not possible in CDMA");
    }

    @Override
    public boolean
    getCallForwardingIndicator() {
        Rlog.e(LOG_TAG, "getCallForwardingIndicator: not possible in CDMA");
        return false;
    }

    @Override
    public void explicitCallTransfer() {
        Rlog.e(LOG_TAG, "explicitCallTransfer: not possible in CDMA");
    }

    @Override
    public String getLine1AlphaTag() {
        Rlog.e(LOG_TAG, "getLine1AlphaTag: not possible in CDMA");
        return null;
    }

    /**
     * Notify any interested party of a Phone state change
     * {@link com.android.internal.telephony.PhoneConstants.State}
     */
    /*package*/ void notifyPhoneStateChanged() {
        mNotifier.notifyPhoneState(this);
    }

    /**
     * Notify registrants of a change in the call state. This notifies changes in
     * {@link com.android.internal.telephony.Call.State}. Use this when changes
     * in the precise call state are needed, else use notifyPhoneStateChanged.
     */
    /*package*/ void notifyPreciseCallStateChanged() {
        /* we'd love it if this was package-scoped*/
        super.notifyPreciseCallStateChangedP();
    }

     void notifyServiceStateChanged(ServiceState ss) {
         super.notifyServiceStateChangedP(ss);
     }

     void notifyLocationChanged() {
         mNotifier.notifyCellLocation(this);
     }

    public void notifyNewRingingConnection(Connection c) {
        super.notifyNewRingingConnectionP(c);
    }

    /*package*/ void notifyDisconnect(Connection cn) {
        mDisconnectRegistrants.notifyResult(cn);

        mNotifier.notifyDisconnectCause(cn.getDisconnectCause(), cn.getPreciseDisconnectCause());
    }

    void notifyUnknownConnection() {
        mUnknownConnectionRegistrants.notifyResult(this);
    }

    @Override
    public boolean isInEmergencyCall() {
        return mCT.isInEmergencyCall();
    }

    @Override
    public boolean isInEcm() {
        return mIsPhoneInEcmState;
    }

    void sendEmergencyCallbackModeChange(){
        //Send an Intent
        Intent intent = new Intent(TelephonyIntents.ACTION_EMERGENCY_CALLBACK_MODE_CHANGED);
        intent.putExtra(PhoneConstants.PHONE_IN_ECM_STATE, mIsPhoneInEcmState);
        SubscriptionManager.putPhoneIdAndSubIdExtra(intent, getPhoneId());
        ActivityManagerNative.broadcastStickyIntent(intent,null,UserHandle.USER_ALL);
        if (DBG) Rlog.d(LOG_TAG, "sendEmergencyCallbackModeChange");
    }

    @Override
    public void exitEmergencyCallbackMode() {
        if (mWakeLock.isHeld()) {
            mWakeLock.release();
        }
        // Send a message which will invoke handleExitEmergencyCallbackMode
        mCi.exitEmergencyCallbackMode(obtainMessage(EVENT_EXIT_EMERGENCY_CALLBACK_RESPONSE));
    }

    private void handleEnterEmergencyCallbackMode(Message msg) {
        if (DBG) {
            Rlog.d(LOG_TAG, "handleEnterEmergencyCallbackMode,mIsPhoneInEcmState= "
                    + mIsPhoneInEcmState);
        }
        // if phone is not in Ecm mode, and it's changed to Ecm mode
        if (mIsPhoneInEcmState == false) {
            mIsPhoneInEcmState = true;
            // notify change
            sendEmergencyCallbackModeChange();
            setSystemProperty(TelephonyProperties.PROPERTY_INECM_MODE, "true");

            // Post this runnable so we will automatically exit
            // if no one invokes exitEmergencyCallbackMode() directly.
            long delayInMillis = SystemProperties.getLong(
                    TelephonyProperties.PROPERTY_ECM_EXIT_TIMER, DEFAULT_ECM_EXIT_TIMER_VALUE);
            postDelayed(mExitEcmRunnable, delayInMillis);
            // We don't want to go to sleep while in Ecm
            mWakeLock.acquire();
        }
    }

    private void handleExitEmergencyCallbackMode(Message msg) {
        AsyncResult ar = (AsyncResult)msg.obj;
        if (DBG) {
            Rlog.d(LOG_TAG, "handleExitEmergencyCallbackMode,ar.exception , mIsPhoneInEcmState "
                    + ar.exception + mIsPhoneInEcmState);
        }
        // Remove pending exit Ecm runnable, if any
        removeCallbacks(mExitEcmRunnable);

        if (mEcmExitRespRegistrant != null) {
            mEcmExitRespRegistrant.notifyRegistrant(ar);
        }
        // if exiting ecm success
        if (ar.exception == null) {
            if (mIsPhoneInEcmState) {
                mIsPhoneInEcmState = false;
                setSystemProperty(TelephonyProperties.PROPERTY_INECM_MODE, "false");
            }
            // send an Intent
            sendEmergencyCallbackModeChange();
            // Re-initiate data connection
            mDcTracker.setInternalDataEnabled(true);
        }
    }

    /**
     * Handle to cancel or restart Ecm timer in emergency call back mode
     * if action is CANCEL_ECM_TIMER, cancel Ecm timer and notify apps the timer is canceled;
     * otherwise, restart Ecm timer and notify apps the timer is restarted.
     */
    void handleTimerInEmergencyCallbackMode(int action) {
        switch(action) {
        case CANCEL_ECM_TIMER:
            removeCallbacks(mExitEcmRunnable);
            mEcmTimerResetRegistrants.notifyResult(Boolean.TRUE);
            break;
        case RESTART_ECM_TIMER:
            long delayInMillis = SystemProperties.getLong(
                    TelephonyProperties.PROPERTY_ECM_EXIT_TIMER, DEFAULT_ECM_EXIT_TIMER_VALUE);
            postDelayed(mExitEcmRunnable, delayInMillis);
            mEcmTimerResetRegistrants.notifyResult(Boolean.FALSE);
            break;
        default:
            Rlog.e(LOG_TAG, "handleTimerInEmergencyCallbackMode, unsupported action " + action);
        }
    }

    public void notifyEcbmTimerReset(Boolean flag) {
        mEcmTimerResetRegistrants.notifyResult(flag);
    }

    /**
     * Registration point for Ecm timer reset
     * @param h handler to notify
     * @param what User-defined message code
     * @param obj placed in Message.obj
     */
    @Override
    public void registerForEcmTimerReset(Handler h, int what, Object obj) {
        mEcmTimerResetRegistrants.addUnique(h, what, obj);
    }

    @Override
    public void unregisterForEcmTimerReset(Handler h) {
        mEcmTimerResetRegistrants.remove(h);
    }

    @Override
    public void handleMessage(Message msg) {
        AsyncResult ar;
        Message     onComplete;

        if (!mIsTheCurrentActivePhone) {
            Rlog.e(LOG_TAG, "Received message " + msg +
                    "[" + msg.what + "] while being destroyed. Ignoring.");
            return;
        }
        switch(msg.what) {
            case EVENT_RADIO_AVAILABLE: {
                mCi.getBasebandVersion(obtainMessage(EVENT_GET_BASEBAND_VERSION_DONE));

                mCi.getDeviceIdentity(obtainMessage(EVENT_GET_DEVICE_IDENTITY_DONE));
            }
            break;

            case EVENT_GET_BASEBAND_VERSION_DONE:{
                ar = (AsyncResult)msg.obj;

                if (ar.exception != null) {
                    break;
                }

                if (DBG) Rlog.d(LOG_TAG, "Baseband version: " + ar.result);
                setSystemProperty(TelephonyProperties.PROPERTY_BASEBAND_VERSION, (String)ar.result);
            }
            break;

            case EVENT_GET_DEVICE_IDENTITY_DONE:{
                ar = (AsyncResult)msg.obj;

                if (ar.exception != null) {
                    break;
                }
                String[] respId = (String[])ar.result;
                mImei = respId[0];
                mImeiSv = respId[1];
                mEsn  =  respId[2];
                mMeid =  respId[3];
            }
            break;

            case EVENT_EMERGENCY_CALLBACK_MODE_ENTER:{
                handleEnterEmergencyCallbackMode(msg);
            }
            break;

            case EVENT_ICC_RECORD_EVENTS:
                ar = (AsyncResult)msg.obj;
                processIccRecordEvents((Integer)ar.result);
                break;

            case  EVENT_EXIT_EMERGENCY_CALLBACK_RESPONSE:{
                handleExitEmergencyCallbackMode(msg);
            }
            break;

            case EVENT_RUIM_RECORDS_LOADED:{
                Rlog.d(LOG_TAG, "Event EVENT_RUIM_RECORDS_LOADED Received");
                updateCurrentCarrierInProvider();
            }
            break;

            case EVENT_RADIO_OFF_OR_NOT_AVAILABLE:{
                Rlog.d(LOG_TAG, "Event EVENT_RADIO_OFF_OR_NOT_AVAILABLE Received");
                ImsPhone imsPhone = mImsPhone;
                if (imsPhone != null) {
                    imsPhone.getServiceState().setStateOff();
                }
            }
            break;

            case EVENT_RADIO_ON:{
                Rlog.d(LOG_TAG, "Event EVENT_RADIO_ON Received");
                handleCdmaSubscriptionSource(mCdmaSSM.getCdmaSubscriptionSource());
            }
            break;

            case EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED:{
                Rlog.d(LOG_TAG, "EVENT_CDMA_SUBSCRIPTION_SOURCE_CHANGED");
                handleCdmaSubscriptionSource(mCdmaSSM.getCdmaSubscriptionSource());
            }
            break;

            case EVENT_SSN:{
                Rlog.d(LOG_TAG, "Event EVENT_SSN Received");
            }
            break;

            case EVENT_REGISTERED_TO_NETWORK:{
                Rlog.d(LOG_TAG, "Event EVENT_REGISTERED_TO_NETWORK Received");
            }
            break;

            case EVENT_NV_READY:{
                Rlog.d(LOG_TAG, "Event EVENT_NV_READY Received");
                prepareEri();
            }
            break;

            case EVENT_SET_VM_NUMBER_DONE:{
                ar = (AsyncResult)msg.obj;
                if (IccException.class.isInstance(ar.exception)) {
                    storeVoiceMailNumber(mVmNumber);
                    ar.exception = null;
                }
                onComplete = (Message) ar.userObj;
                if (onComplete != null) {
                    AsyncResult.forMessage(onComplete, ar.result, ar.exception);
                    onComplete.sendToTarget();
                }
            }
            break;

            default:{
                super.handleMessage(msg);
            }
        }
    }

    protected UiccCardApplication getUiccCardApplication() {
        return  mUiccController.getUiccCardApplication(mPhoneId, UiccController.APP_FAM_3GPP2);
    }

    @Override
    protected void onUpdateIccAvailability() {
        if (mUiccController == null ) {
            return;
        }

        UiccCardApplication newUiccApplication = getUiccCardApplication();

        if (newUiccApplication == null) {
            log("can't find 3GPP2 application; trying APP_FAM_3GPP");
            newUiccApplication =
                    mUiccController.getUiccCardApplication(mPhoneId, UiccController.APP_FAM_3GPP);
        }

        UiccCardApplication app = mUiccApplication.get();
        if (app != newUiccApplication) {
            if (app != null) {
                log("Removing stale icc objects.");
                if (mIccRecords.get() != null) {
                    unregisterForRuimRecordEvents();
                }
                mIccRecords.set(null);
                mUiccApplication.set(null);
            }
            if (newUiccApplication != null) {
                log("New Uicc application found");
                mUiccApplication.set(newUiccApplication);
                mIccRecords.set(newUiccApplication.getIccRecords());
                registerForRuimRecordEvents();
            }
        }
    }

    private void processIccRecordEvents(int eventCode) {
        switch (eventCode) {
            case RuimRecords.EVENT_MWI:
                notifyMessageWaitingIndicator();
                break;

            default:
                Rlog.e(LOG_TAG,"Unknown icc records event code " + eventCode);
                break;
        }
    }

    /**
     * Handles the call to get the subscription source
     *
     * @param newSubscriptionSource holds the new CDMA subscription source value
     */
    private void handleCdmaSubscriptionSource(int newSubscriptionSource) {
        if (newSubscriptionSource != mCdmaSubscriptionSource) {
             mCdmaSubscriptionSource = newSubscriptionSource;
             if (newSubscriptionSource == CDMA_SUBSCRIPTION_NV) {
                 // NV is ready when subscription source is NV
                 sendMessage(obtainMessage(EVENT_NV_READY));
             }
        }
    }

    /**
     * Retrieves the PhoneSubInfo of the CDMAPhone
     */
    @Override
    public PhoneSubInfo getPhoneSubInfo() {
        return mSubInfo;
    }

    /**
     * Retrieves the IccPhoneBookInterfaceManager of the CDMAPhone
     */
    @Override
    public IccPhoneBookInterfaceManager getIccPhoneBookInterfaceManager() {
        return mRuimPhoneBookInterfaceManager;
    }

    public void registerForEriFileLoaded(Handler h, int what, Object obj) {
        Registrant r = new Registrant (h, what, obj);
        mEriFileLoadedRegistrants.add(r);
    }

    public void unregisterForEriFileLoaded(Handler h) {
        mEriFileLoadedRegistrants.remove(h);
    }

    // override for allowing access from other classes of this package
    /**
     * {@inheritDoc}
     */
    @Override
    public void setSystemProperty(String property, String value) {
        super.setSystemProperty(property, value);
    }

    /**
     * Activate or deactivate cell broadcast SMS.
     *
     * @param activate 0 = activate, 1 = deactivate
     * @param response Callback message is empty on completion
     */
    @Override
    public void activateCellBroadcastSms(int activate, Message response) {
        Rlog.e(LOG_TAG, "[CDMAPhone] activateCellBroadcastSms() is obsolete; use SmsManager");
        response.sendToTarget();
    }

    /**
     * Query the current configuration of cdma cell broadcast SMS.
     *
     * @param response Callback message is empty on completion
     */
    @Override
    public void getCellBroadcastSmsConfig(Message response) {
        Rlog.e(LOG_TAG, "[CDMAPhone] getCellBroadcastSmsConfig() is obsolete; use SmsManager");
        response.sendToTarget();
    }

    /**
     * Configure cdma cell broadcast SMS.
     *
     * @param response Callback message is empty on completion
     */
    @Override
    public void setCellBroadcastSmsConfig(int[] configValuesArray, Message response) {
        Rlog.e(LOG_TAG, "[CDMAPhone] setCellBroadcastSmsConfig() is obsolete; use SmsManager");
        response.sendToTarget();
    }

    /**
     * Returns true if OTA Service Provisioning needs to be performed.
     */
    @Override
    public boolean needsOtaServiceProvisioning() {
        return mSST.getOtasp() != ServiceStateTracker.OTASP_NOT_NEEDED;
    }

    private static final String IS683A_FEATURE_CODE = "*228";
    private static final int IS683A_FEATURE_CODE_NUM_DIGITS = 4;
    private static final int IS683A_SYS_SEL_CODE_NUM_DIGITS = 2;
    private static final int IS683A_SYS_SEL_CODE_OFFSET = 4;

    private static final int IS683_CONST_800MHZ_A_BAND = 0;
    private static final int IS683_CONST_800MHZ_B_BAND = 1;
    private static final int IS683_CONST_1900MHZ_A_BLOCK = 2;
    private static final int IS683_CONST_1900MHZ_B_BLOCK = 3;
    private static final int IS683_CONST_1900MHZ_C_BLOCK = 4;
    private static final int IS683_CONST_1900MHZ_D_BLOCK = 5;
    private static final int IS683_CONST_1900MHZ_E_BLOCK = 6;
    private static final int IS683_CONST_1900MHZ_F_BLOCK = 7;
    private static final int INVALID_SYSTEM_SELECTION_CODE = -1;

    private static boolean isIs683OtaSpDialStr(String dialStr) {
        int sysSelCodeInt;
        boolean isOtaspDialString = false;
        int dialStrLen = dialStr.length();

        if (dialStrLen == IS683A_FEATURE_CODE_NUM_DIGITS) {
            if (dialStr.equals(IS683A_FEATURE_CODE)) {
                isOtaspDialString = true;
            }
        } else {
            sysSelCodeInt = extractSelCodeFromOtaSpNum(dialStr);
            switch (sysSelCodeInt) {
                case IS683_CONST_800MHZ_A_BAND:
                case IS683_CONST_800MHZ_B_BAND:
                case IS683_CONST_1900MHZ_A_BLOCK:
                case IS683_CONST_1900MHZ_B_BLOCK:
                case IS683_CONST_1900MHZ_C_BLOCK:
                case IS683_CONST_1900MHZ_D_BLOCK:
                case IS683_CONST_1900MHZ_E_BLOCK:
                case IS683_CONST_1900MHZ_F_BLOCK:
                    isOtaspDialString = true;
                    break;
                default:
                    break;
            }
        }
        return isOtaspDialString;
    }
    /**
     * This function extracts the system selection code from the dial string.
     */
    private static int extractSelCodeFromOtaSpNum(String dialStr) {
        int dialStrLen = dialStr.length();
        int sysSelCodeInt = INVALID_SYSTEM_SELECTION_CODE;

        if ((dialStr.regionMatches(0, IS683A_FEATURE_CODE,
                                   0, IS683A_FEATURE_CODE_NUM_DIGITS)) &&
            (dialStrLen >= (IS683A_FEATURE_CODE_NUM_DIGITS +
                            IS683A_SYS_SEL_CODE_NUM_DIGITS))) {
                // Since we checked the condition above, the system selection code
                // extracted from dialStr will not cause any exception
                sysSelCodeInt = Integer.parseInt (
                                dialStr.substring (IS683A_FEATURE_CODE_NUM_DIGITS,
                                IS683A_FEATURE_CODE_NUM_DIGITS + IS683A_SYS_SEL_CODE_NUM_DIGITS));
        }
        if (DBG) Rlog.d(LOG_TAG, "extractSelCodeFromOtaSpNum " + sysSelCodeInt);
        return sysSelCodeInt;
    }

    /**
     * This function checks if the system selection code extracted from
     * the dial string "sysSelCodeInt' is the system selection code specified
     * in the carrier ota sp number schema "sch".
     */
    private static boolean
    checkOtaSpNumBasedOnSysSelCode (int sysSelCodeInt, String sch[]) {
        boolean isOtaSpNum = false;
        try {
            // Get how many number of system selection code ranges
            int selRc = Integer.parseInt(sch[1]);
            for (int i = 0; i < selRc; i++) {
                if (!TextUtils.isEmpty(sch[i+2]) && !TextUtils.isEmpty(sch[i+3])) {
                    int selMin = Integer.parseInt(sch[i+2]);
                    int selMax = Integer.parseInt(sch[i+3]);
                    // Check if the selection code extracted from the dial string falls
                    // within any of the range pairs specified in the schema.
                    if ((sysSelCodeInt >= selMin) && (sysSelCodeInt <= selMax)) {
                        isOtaSpNum = true;
                        break;
                    }
                }
            }
        } catch (NumberFormatException ex) {
            // If the carrier ota sp number schema is not correct, we still allow dial
            // and only log the error:
            Rlog.e(LOG_TAG, "checkOtaSpNumBasedOnSysSelCode, error", ex);
        }
        return isOtaSpNum;
    }

    // Define the pattern/format for carrier specified OTASP number schema.
    // It separates by comma and/or whitespace.
    private static Pattern pOtaSpNumSchema = Pattern.compile("[,\\s]+");

    /**
     * The following function checks if a dial string is a carrier specified
     * OTASP number or not by checking against the OTASP number schema stored
     * in PROPERTY_OTASP_NUM_SCHEMA.
     *
     * Currently, there are 2 schemas for carriers to specify the OTASP number:
     * 1) Use system selection code:
     *    The schema is:
     *    SELC,the # of code pairs,min1,max1,min2,max2,...
     *    e.g "SELC,3,10,20,30,40,60,70" indicates that there are 3 pairs of
     *    selection codes, and they are {10,20}, {30,40} and {60,70} respectively.
     *
     * 2) Use feature code:
     *    The schema is:
     *    "FC,length of feature code,feature code".
     *     e.g "FC,2,*2" indicates that the length of the feature code is 2,
     *     and the code itself is "*2".
     */
    private boolean isCarrierOtaSpNum(String dialStr) {
        boolean isOtaSpNum = false;
        int sysSelCodeInt = extractSelCodeFromOtaSpNum(dialStr);
        if (sysSelCodeInt == INVALID_SYSTEM_SELECTION_CODE) {
            return isOtaSpNum;
        }
        // mCarrierOtaSpNumSchema is retrieved from PROPERTY_OTASP_NUM_SCHEMA:
        if (!TextUtils.isEmpty(mCarrierOtaSpNumSchema)) {
            Matcher m = pOtaSpNumSchema.matcher(mCarrierOtaSpNumSchema);
            if (DBG) {
                Rlog.d(LOG_TAG, "isCarrierOtaSpNum,schema" + mCarrierOtaSpNumSchema);
            }

            if (m.find()) {
                String sch[] = pOtaSpNumSchema.split(mCarrierOtaSpNumSchema);
                // If carrier uses system selection code mechanism
                if (!TextUtils.isEmpty(sch[0]) && sch[0].equals("SELC")) {
                    if (sysSelCodeInt!=INVALID_SYSTEM_SELECTION_CODE) {
                        isOtaSpNum=checkOtaSpNumBasedOnSysSelCode(sysSelCodeInt,sch);
                    } else {
                        if (DBG) {
                            Rlog.d(LOG_TAG, "isCarrierOtaSpNum,sysSelCodeInt is invalid");
                        }
                    }
                } else if (!TextUtils.isEmpty(sch[0]) && sch[0].equals("FC")) {
                    int fcLen =  Integer.parseInt(sch[1]);
                    String fc = sch[2];
                    if (dialStr.regionMatches(0,fc,0,fcLen)) {
                        isOtaSpNum = true;
                    } else {
                        if (DBG) Rlog.d(LOG_TAG, "isCarrierOtaSpNum,not otasp number");
                    }
                } else {
                    if (DBG) {
                        Rlog.d(LOG_TAG, "isCarrierOtaSpNum,ota schema not supported" + sch[0]);
                    }
                }
            } else {
                if (DBG) {
                    Rlog.d(LOG_TAG, "isCarrierOtaSpNum,ota schema pattern not right" +
                          mCarrierOtaSpNumSchema);
                }
            }
        } else {
            if (DBG) Rlog.d(LOG_TAG, "isCarrierOtaSpNum,ota schema pattern empty");
        }
        return isOtaSpNum;
    }

    /**
     * isOTASPNumber: checks a given number against the IS-683A OTASP dial string and carrier
     * OTASP dial string.
     *
     * @param dialStr the number to look up.
     * @return true if the number is in IS-683A OTASP dial string or carrier OTASP dial string
     */
    @Override
    public  boolean isOtaSpNumber(String dialStr){
        boolean isOtaSpNum = false;
        String dialableStr = PhoneNumberUtils.extractNetworkPortionAlt(dialStr);
        if (dialableStr != null) {
            isOtaSpNum = isIs683OtaSpDialStr(dialableStr);
            if (isOtaSpNum == false) {
                isOtaSpNum = isCarrierOtaSpNum(dialableStr);
            }
        }
        if (DBG) Rlog.d(LOG_TAG, "isOtaSpNumber " + isOtaSpNum);
        return isOtaSpNum;
    }

    @Override
    public int getCdmaEriIconIndex() {
        return getServiceState().getCdmaEriIconIndex();
    }

    /**
     * Returns the CDMA ERI icon mode,
     * 0 - ON
     * 1 - FLASHING
     */
    @Override
    public int getCdmaEriIconMode() {
        return getServiceState().getCdmaEriIconMode();
    }

    /**
     * Returns the CDMA ERI text,
     */
    @Override
    public String getCdmaEriText() {
        int roamInd = getServiceState().getCdmaRoamingIndicator();
        int defRoamInd = getServiceState().getCdmaDefaultRoamingIndicator();
        return mEriManager.getCdmaEriText(roamInd, defRoamInd);
    }

    /**
     * Store the voicemail number in preferences
     */
    private void storeVoiceMailNumber(String number) {
        // Update the preference value of voicemail number
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getContext());
        SharedPreferences.Editor editor = sp.edit();
        editor.putString(VM_NUMBER_CDMA + getPhoneId(), number);
        editor.apply();
    }

    /**
     * Sets PROPERTY_ICC_OPERATOR_ISO_COUNTRY property
     *
     */
    protected void setIsoCountryProperty(String operatorNumeric) {
        if (TextUtils.isEmpty(operatorNumeric)) {
            log("setIsoCountryProperty: clear 'gsm.sim.operator.iso-country'");
            setSystemProperty(PROPERTY_ICC_OPERATOR_ISO_COUNTRY, "");
        } else {
            String iso = "";
            try {
                iso = MccTable.countryCodeForMcc(Integer.parseInt(
                        operatorNumeric.substring(0,3)));
            } catch (NumberFormatException ex) {
                loge("setIsoCountryProperty: countryCodeForMcc error", ex);
            } catch (StringIndexOutOfBoundsException ex) {
                loge("setIsoCountryProperty: countryCodeForMcc error", ex);
            }

            log("setIsoCountryProperty: set 'gsm.sim.operator.iso-country' to iso=" + iso);
            setSystemProperty(PROPERTY_ICC_OPERATOR_ISO_COUNTRY, iso);
        }
    }

    /**
     * Sets the "current" field in the telephony provider according to the
     * build-time operator numeric property
     *
     * @return true for success; false otherwise.
     */
    boolean updateCurrentCarrierInProvider(String operatorNumeric) {
        log("CDMAPhone: updateCurrentCarrierInProvider called");
        if (!TextUtils.isEmpty(operatorNumeric)) {
            try {
                Uri uri = Uri.withAppendedPath(Telephony.Carriers.CONTENT_URI, "current");
                ContentValues map = new ContentValues();
                map.put(Telephony.Carriers.NUMERIC, operatorNumeric);
                log("updateCurrentCarrierInProvider from system: numeric=" + operatorNumeric);
                getContext().getContentResolver().insert(uri, map);

                // Updates MCC MNC device configuration information
                log("update mccmnc=" + operatorNumeric);
                MccTable.updateMccMncConfiguration(mContext, operatorNumeric, false);

                return true;
            } catch (SQLException e) {
                Rlog.e(LOG_TAG, "Can't store current operator", e);
            }
        }
        return false;
    }

    /**
     * Sets the "current" field in the telephony provider according to the SIM's operator.
     * Implemented in {@link CDMALTEPhone} for CDMA/LTE devices.
     *
     * @return true for success; false otherwise.
     */
    boolean updateCurrentCarrierInProvider() {
        return true;
    }

    public void prepareEri() {
        if (mEriManager == null) {
            Rlog.e(LOG_TAG, "PrepareEri: Trying to access stale objects");
            return;
        }
        mEriManager.loadEriFile();
        if(mEriManager.isEriFileLoaded()) {
            // when the ERI file is loaded
            log("ERI read, notify registrants");
            mEriFileLoadedRegistrants.notifyRegistrants();
        }
    }

    public boolean isEriFileLoaded() {
        return mEriManager.isEriFileLoaded();
    }

    protected void registerForRuimRecordEvents() {
        IccRecords r = mIccRecords.get();
        if (r == null) {
            return;
        }
        r.registerForRecordsEvents(this, EVENT_ICC_RECORD_EVENTS, null);
        r.registerForRecordsLoaded(this, EVENT_RUIM_RECORDS_LOADED, null);
    }

    protected void unregisterForRuimRecordEvents() {
        IccRecords r = mIccRecords.get();
        if (r == null) {
            return;
        }
        r.unregisterForRecordsEvents(this);
        r.unregisterForRecordsLoaded(this);
    }

    protected void log(String s) {
        if (DBG)
            Rlog.d(LOG_TAG, s);
    }

    protected void loge(String s, Exception e) {
        if (DBG)
            Rlog.e(LOG_TAG, s, e);
    }

    @Override
    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
        pw.println("CDMAPhone extends:");
        super.dump(fd, pw, args);
        pw.println(" mVmNumber=" + mVmNumber);
        pw.println(" mCT=" + mCT);
        pw.println(" mSST=" + mSST);
        pw.println(" mCdmaSSM=" + mCdmaSSM);
        pw.println(" mPendingMmis=" + mPendingMmis);
        pw.println(" mRuimPhoneBookInterfaceManager=" + mRuimPhoneBookInterfaceManager);
        pw.println(" mCdmaSubscriptionSource=" + mCdmaSubscriptionSource);
        pw.println(" mSubInfo=" + mSubInfo);
        pw.println(" mEriManager=" + mEriManager);
        pw.println(" mWakeLock=" + mWakeLock);
        pw.println(" mIsPhoneInEcmState=" + mIsPhoneInEcmState);
        if (VDBG) pw.println(" mImei=" + mImei);
        if (VDBG) pw.println(" mImeiSv=" + mImeiSv);
        if (VDBG) pw.println(" mEsn=" + mEsn);
        if (VDBG) pw.println(" mMeid=" + mMeid);
        pw.println(" mCarrierOtaSpNumSchema=" + mCarrierOtaSpNumSchema);
        pw.println(" getCdmaEriIconIndex()=" + getCdmaEriIconIndex());
        pw.println(" getCdmaEriIconMode()=" + getCdmaEriIconMode());
        pw.println(" getCdmaEriText()=" + getCdmaEriText());
        pw.println(" isMinInfoReady()=" + isMinInfoReady());
        pw.println(" isCspPlmnEnabled()=" + isCspPlmnEnabled());
    }

    @Override
    public boolean setOperatorBrandOverride(String iccId, String brand) {
        if (mUiccController == null) {
            return false;
        }

        UiccCard card = mUiccController.getUiccCard();
        if (card == null) {
            return false;
        }

        boolean status = card.setOperatorBrandOverride(iccId, brand);

        // Refresh.
        if (status) {
            IccRecords iccRecords = mIccRecords.get();
            if (iccRecords != null) {
                SystemProperties.set(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA,
                        iccRecords.getServiceProviderName());
            }
            if (mSST != null) {
                mSST.pollState();
            }
        }
        return status;
    }
}