| /* |
| * Copyright (C) 2014 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.services.telephony; |
| |
| import android.content.ActivityNotFoundException; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.provider.Settings; |
| import android.telecom.Conference; |
| import android.telecom.Connection; |
| import android.telecom.ConnectionRequest; |
| import android.telecom.ConnectionService; |
| import android.telecom.DisconnectCause; |
| import android.telecom.PhoneAccount; |
| import android.telecom.PhoneAccountHandle; |
| import android.telecom.TelecomManager; |
| import android.telecom.VideoProfile; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.PhoneNumberUtils; |
| import android.telephony.RadioAccessFamily; |
| import android.telephony.ServiceState; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.Pair; |
| |
| import com.android.internal.telephony.Call; |
| import com.android.internal.telephony.CallStateException; |
| import com.android.internal.telephony.IccCard; |
| import com.android.internal.telephony.IccCardConstants; |
| import com.android.internal.telephony.Phone; |
| import com.android.internal.telephony.PhoneConstants; |
| import com.android.internal.telephony.PhoneFactory; |
| import com.android.internal.telephony.SubscriptionController; |
| import com.android.internal.telephony.imsphone.ImsExternalCallTracker; |
| import com.android.internal.telephony.imsphone.ImsPhone; |
| import com.android.phone.MMIDialogActivity; |
| import com.android.phone.PhoneUtils; |
| import com.android.phone.R; |
| |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Service for making GSM and CDMA connections. |
| */ |
| public class TelephonyConnectionService extends ConnectionService { |
| |
| // If configured, reject attempts to dial numbers matching this pattern. |
| private static final Pattern CDMA_ACTIVATION_CODE_REGEX_PATTERN = |
| Pattern.compile("\\*228[0-9]{0,2}"); |
| |
| private final TelephonyConferenceController mTelephonyConferenceController = |
| new TelephonyConferenceController(this); |
| private final CdmaConferenceController mCdmaConferenceController = |
| new CdmaConferenceController(this); |
| private final ImsConferenceController mImsConferenceController = |
| new ImsConferenceController(this); |
| |
| private ComponentName mExpectedComponentName = null; |
| private EmergencyTonePlayer mEmergencyTonePlayer; |
| |
| // Contains one TelephonyConnection that has placed a call and a memory of which Phones it has |
| // already tried to connect with. There should be only one TelephonyConnection trying to place a |
| // call at one time. We also only access this cache from a TelephonyConnection that wishes to |
| // redial, so we use a WeakReference that will become stale once the TelephonyConnection is |
| // destroyed. |
| private Pair<WeakReference<TelephonyConnection>, List<Phone>> mEmergencyRetryCache; |
| |
| /** |
| * A listener to actionable events specific to the TelephonyConnection. |
| */ |
| private final TelephonyConnection.TelephonyConnectionListener mTelephonyConnectionListener = |
| new TelephonyConnection.TelephonyConnectionListener() { |
| @Override |
| public void onOriginalConnectionConfigured(TelephonyConnection c) { |
| addConnectionToConferenceController(c); |
| } |
| |
| @Override |
| public void onOriginalConnectionRetry(TelephonyConnection c) { |
| retryOutgoingOriginalConnection(c); |
| } |
| }; |
| |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| mExpectedComponentName = new ComponentName(this, this.getClass()); |
| mEmergencyTonePlayer = new EmergencyTonePlayer(this); |
| TelecomAccountRegistry.getInstance(this).setTelephonyConnectionService(this); |
| } |
| |
| @Override |
| public Connection onCreateOutgoingConnection( |
| PhoneAccountHandle connectionManagerPhoneAccount, |
| final ConnectionRequest request) { |
| Log.i(this, "onCreateOutgoingConnection, request: " + request); |
| |
| Uri handle = request.getAddress(); |
| if (handle == null) { |
| Log.d(this, "onCreateOutgoingConnection, handle is null"); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.NO_PHONE_NUMBER_SUPPLIED, |
| "No phone number supplied")); |
| } |
| |
| String scheme = handle.getScheme(); |
| String number; |
| if (PhoneAccount.SCHEME_VOICEMAIL.equals(scheme)) { |
| // TODO: We don't check for SecurityException here (requires |
| // CALL_PRIVILEGED permission). |
| final Phone phone = getPhoneForAccount(request.getAccountHandle(), false); |
| if (phone == null) { |
| Log.d(this, "onCreateOutgoingConnection, phone is null"); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUT_OF_SERVICE, |
| "Phone is null")); |
| } |
| number = phone.getVoiceMailNumber(); |
| if (TextUtils.isEmpty(number)) { |
| Log.d(this, "onCreateOutgoingConnection, no voicemail number set."); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.VOICEMAIL_NUMBER_MISSING, |
| "Voicemail scheme provided but no voicemail number set.")); |
| } |
| |
| // Convert voicemail: to tel: |
| handle = Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null); |
| } else { |
| if (!PhoneAccount.SCHEME_TEL.equals(scheme)) { |
| Log.d(this, "onCreateOutgoingConnection, Handle %s is not type tel", scheme); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.INVALID_NUMBER, |
| "Handle scheme is not type tel")); |
| } |
| |
| number = handle.getSchemeSpecificPart(); |
| if (TextUtils.isEmpty(number)) { |
| Log.d(this, "onCreateOutgoingConnection, unable to parse number"); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.INVALID_NUMBER, |
| "Unable to parse number")); |
| } |
| |
| final Phone phone = getPhoneForAccount(request.getAccountHandle(), false); |
| if (phone != null && CDMA_ACTIVATION_CODE_REGEX_PATTERN.matcher(number).matches()) { |
| // Obtain the configuration for the outgoing phone's SIM. If the outgoing number |
| // matches the *228 regex pattern, fail the call. This number is used for OTASP, and |
| // when dialed could lock LTE SIMs to 3G if not prohibited.. |
| boolean disableActivation = false; |
| CarrierConfigManager cfgManager = (CarrierConfigManager) |
| phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE); |
| if (cfgManager != null) { |
| disableActivation = cfgManager.getConfigForSubId(phone.getSubId()) |
| .getBoolean(CarrierConfigManager.KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL); |
| } |
| |
| if (disableActivation) { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause |
| .CDMA_ALREADY_ACTIVATED, |
| "Tried to dial *228")); |
| } |
| } |
| } |
| |
| // Convert into emergency number if necessary |
| // This is required in some regions (e.g. Taiwan). |
| if (!PhoneNumberUtils.isLocalEmergencyNumber(this, number) && |
| PhoneNumberUtils.isConvertToEmergencyNumberEnabled()) { |
| final Phone phone = getPhoneForAccount(request.getAccountHandle(), false); |
| // We only do the conversion if the phone is not in service. The un-converted |
| // emergency numbers will go to the correct destination when the phone is in-service, |
| // so they will only need the special emergency call setup when the phone is out of |
| // service. |
| if (phone == null || phone.getServiceState().getState() |
| != ServiceState.STATE_IN_SERVICE) { |
| String convertedNumber = PhoneNumberUtils.convertToEmergencyNumber(number); |
| if (!TextUtils.equals(convertedNumber, number)) { |
| Log.i(this, "onCreateOutgoingConnection, converted to emergency number"); |
| number = convertedNumber; |
| handle = Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null); |
| } |
| } |
| } |
| final String numberToDial = number; |
| |
| final boolean isEmergencyNumber = |
| PhoneNumberUtils.isLocalEmergencyNumber(this, numberToDial); |
| |
| if ((isEmergencyNumber && !isRadioOn()) || isRadioPowerDownOnBluetooth()) { |
| final Uri resultHandle = handle; |
| // By default, Connection based on the default Phone, since we need to return to Telecom |
| // now. |
| final Connection resultConnection = getTelephonyConnection(request, numberToDial, |
| isEmergencyNumber, resultHandle, PhoneFactory.getDefaultPhone()); |
| RadioOnHelper radioOnHelper = new RadioOnHelper(this); |
| radioOnHelper.enableRadioOnCalling(new RadioOnStateListener.Callback() { |
| @Override |
| public void onComplete(RadioOnStateListener listener, |
| boolean isRadioReady) { |
| handleOnComplete(isRadioReady, |
| isEmergencyNumber, |
| resultConnection, |
| request, |
| numberToDial, |
| resultHandle); |
| } |
| |
| @Override |
| public boolean isOkToCall(Phone phone, int serviceState) { |
| if (isEmergencyNumber) { |
| return (phone.getState() == PhoneConstants.State.OFFHOOK) || |
| phone.getServiceStateTracker().isRadioOn(); |
| } else { |
| return (phone.getState() == PhoneConstants.State.OFFHOOK) || |
| serviceState == ServiceState.STATE_IN_SERVICE; |
| } |
| } |
| }); |
| // Return the still unconnected GsmConnection and wait for the Radios to boot before |
| // connecting it to the underlying Phone. |
| return resultConnection; |
| } else { |
| if (!canAddCall() && !isEmergencyNumber) { |
| Log.d(this, "onCreateOutgoingConnection, cannot add call ."); |
| return Connection.createFailedConnection( |
| new DisconnectCause(DisconnectCause.ERROR, |
| getApplicationContext().getText( |
| R.string.incall_error_cannot_add_call), |
| getApplicationContext().getText( |
| R.string.incall_error_cannot_add_call), |
| "Add call restricted due to ongoing video call")); |
| } |
| |
| // Get the right phone object from the account data passed in. |
| final Phone phone = getPhoneForAccount(request.getAccountHandle(), isEmergencyNumber); |
| Connection resultConnection = getTelephonyConnection(request, numberToDial, |
| isEmergencyNumber, handle, phone); |
| // If there was a failure, the resulting connection will not be a TelephonyConnection, |
| // so don't place the call! |
| if(resultConnection instanceof TelephonyConnection) { |
| placeOutgoingConnection((TelephonyConnection) resultConnection, phone, request); |
| } |
| return resultConnection; |
| } |
| } |
| |
| /** |
| * Whether the cellular radio is power off because the device is on Bluetooth. |
| */ |
| private boolean isRadioPowerDownOnBluetooth() { |
| final Context context = getApplicationContext(); |
| final boolean allowed = context.getResources().getBoolean( |
| R.bool.config_allowRadioPowerDownOnBluetooth); |
| final int cellOn = Settings.Global.getInt(context.getContentResolver(), |
| Settings.Global.CELL_ON, |
| PhoneConstants.CELL_ON_FLAG); |
| return (allowed && cellOn == PhoneConstants.CELL_ON_FLAG && !isRadioOn()); |
| } |
| |
| /** |
| * Handle the onComplete callback of RadioOnStateListener. |
| */ |
| private void handleOnComplete(boolean isRadioReady, |
| boolean isEmergencyNumber, |
| Connection originalConnection, |
| ConnectionRequest request, |
| String numberToDial, |
| Uri handle) { |
| // Make sure the Call has not already been canceled by the user. |
| if (originalConnection.getState() == Connection.STATE_DISCONNECTED) { |
| Log.i(this, "Emergency call disconnected before the outgoing call was " + |
| "placed. Skipping emergency call placement."); |
| return; |
| } |
| if (isRadioReady) { |
| // Get the right phone object since the radio has been turned on |
| // successfully. |
| final Phone phone = getPhoneForAccount(request.getAccountHandle(), |
| isEmergencyNumber); |
| // If the PhoneType of the Phone being used is different than the Default |
| // Phone, then we need create a new Connection using that PhoneType and |
| // replace it in Telecom. |
| if (phone.getPhoneType() != PhoneFactory.getDefaultPhone().getPhoneType()) { |
| Connection repConnection = getTelephonyConnection(request, numberToDial, |
| isEmergencyNumber, handle, phone); |
| // If there was a failure, the resulting connection will not be a |
| // TelephonyConnection, so don't place the call, just return! |
| if (repConnection instanceof TelephonyConnection) { |
| placeOutgoingConnection((TelephonyConnection) repConnection, phone, |
| request); |
| } |
| // Notify Telecom of the new Connection type. |
| // TODO: Switch out the underlying connection instead of creating a new |
| // one and causing UI Jank. |
| addExistingConnection(PhoneUtils.makePstnPhoneAccountHandle(phone), |
| repConnection); |
| // Remove the old connection from Telecom after. |
| originalConnection.setDisconnected( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUTGOING_CANCELED, |
| "Reconnecting outgoing Emergency Call.")); |
| originalConnection.destroy(); |
| } else { |
| placeOutgoingConnection((TelephonyConnection) originalConnection, |
| phone, request); |
| } |
| } else { |
| Log.w(this, "onCreateOutgoingConnection, failed to turn on radio"); |
| originalConnection.setDisconnected( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.POWER_OFF, |
| "Failed to turn on radio.")); |
| originalConnection.destroy(); |
| } |
| } |
| |
| /** |
| * @return {@code true} if any other call is disabling the ability to add calls, {@code false} |
| * otherwise. |
| */ |
| private boolean canAddCall() { |
| Collection<Connection> connections = getAllConnections(); |
| for (Connection connection : connections) { |
| if (connection.getExtras() != null && |
| connection.getExtras().getBoolean(Connection.EXTRA_DISABLE_ADD_CALL, false)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| private Connection getTelephonyConnection(final ConnectionRequest request, final String number, |
| boolean isEmergencyNumber, final Uri handle, Phone phone) { |
| |
| if (phone == null) { |
| final Context context = getApplicationContext(); |
| if (context.getResources().getBoolean(R.bool.config_checkSimStateBeforeOutgoingCall)) { |
| // Check SIM card state before the outgoing call. |
| // Start the SIM unlock activity if PIN_REQUIRED. |
| final Phone defaultPhone = PhoneFactory.getDefaultPhone(); |
| final IccCard icc = defaultPhone.getIccCard(); |
| IccCardConstants.State simState = IccCardConstants.State.UNKNOWN; |
| if (icc != null) { |
| simState = icc.getState(); |
| } |
| if (simState == IccCardConstants.State.PIN_REQUIRED) { |
| final String simUnlockUiPackage = context.getResources().getString( |
| R.string.config_simUnlockUiPackage); |
| final String simUnlockUiClass = context.getResources().getString( |
| R.string.config_simUnlockUiClass); |
| if (simUnlockUiPackage != null && simUnlockUiClass != null) { |
| Intent simUnlockIntent = new Intent().setComponent(new ComponentName( |
| simUnlockUiPackage, simUnlockUiClass)); |
| simUnlockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| try { |
| context.startActivity(simUnlockIntent); |
| } catch (ActivityNotFoundException exception) { |
| Log.e(this, exception, "Unable to find SIM unlock UI activity."); |
| } |
| } |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUT_OF_SERVICE, |
| "SIM_STATE_PIN_REQUIRED")); |
| } |
| } |
| |
| Log.d(this, "onCreateOutgoingConnection, phone is null"); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUT_OF_SERVICE, "Phone is null")); |
| } |
| |
| // Check both voice & data RAT to enable normal CS call, |
| // when voice RAT is OOS but Data RAT is present. |
| int state = phone.getServiceState().getState(); |
| if (state == ServiceState.STATE_OUT_OF_SERVICE) { |
| int dataNetType = phone.getServiceState().getDataNetworkType(); |
| if (dataNetType == TelephonyManager.NETWORK_TYPE_LTE || |
| dataNetType == TelephonyManager.NETWORK_TYPE_LTE_CA) { |
| state = phone.getServiceState().getDataRegState(); |
| } |
| } |
| |
| // If we're dialing a non-emergency number and the phone is in ECM mode, reject the call if |
| // carrier configuration specifies that we cannot make non-emergency calls in ECM mode. |
| if (!isEmergencyNumber && phone.isInEcm()) { |
| boolean allowNonEmergencyCalls = true; |
| CarrierConfigManager cfgManager = (CarrierConfigManager) |
| phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE); |
| if (cfgManager != null) { |
| allowNonEmergencyCalls = cfgManager.getConfigForSubId(phone.getSubId()) |
| .getBoolean(CarrierConfigManager.KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL); |
| } |
| |
| if (!allowNonEmergencyCalls) { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.CDMA_NOT_EMERGENCY, |
| "Cannot make non-emergency call in ECM mode." |
| )); |
| } |
| } |
| |
| if (!isEmergencyNumber) { |
| switch (state) { |
| case ServiceState.STATE_IN_SERVICE: |
| case ServiceState.STATE_EMERGENCY_ONLY: |
| break; |
| case ServiceState.STATE_OUT_OF_SERVICE: |
| if (phone.isUtEnabled() && number.endsWith("#")) { |
| Log.d(this, "onCreateOutgoingConnection dial for UT"); |
| break; |
| } else { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUT_OF_SERVICE, |
| "ServiceState.STATE_OUT_OF_SERVICE")); |
| } |
| case ServiceState.STATE_POWER_OFF: |
| // Don't disconnect if radio is power off because the device is on Bluetooth. |
| if (isRadioPowerDownOnBluetooth()) { |
| break; |
| } |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.POWER_OFF, |
| "ServiceState.STATE_POWER_OFF")); |
| default: |
| Log.d(this, "onCreateOutgoingConnection, unknown service state: %d", state); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUTGOING_FAILURE, |
| "Unknown service state " + state)); |
| } |
| } |
| |
| final Context context = getApplicationContext(); |
| if (VideoProfile.isVideo(request.getVideoState()) && isTtyModeEnabled(context) && |
| !isEmergencyNumber) { |
| return Connection.createFailedConnection(DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.VIDEO_CALL_NOT_ALLOWED_WHILE_TTY_ENABLED)); |
| } |
| |
| // Check for additional limits on CDMA phones. |
| final Connection failedConnection = checkAdditionalOutgoingCallLimits(phone); |
| if (failedConnection != null) { |
| return failedConnection; |
| } |
| |
| // Check roaming status to see if we should block custom call forwarding codes |
| if (blockCallForwardingNumberWhileRoaming(phone, number)) { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.DIALED_CALL_FORWARDING_WHILE_ROAMING, |
| "Call forwarding while roaming")); |
| } |
| |
| |
| final TelephonyConnection connection = |
| createConnectionFor(phone, null, true /* isOutgoing */, request.getAccountHandle(), |
| request.getTelecomCallId(), request.getAddress(), request.getVideoState()); |
| if (connection == null) { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.OUTGOING_FAILURE, |
| "Invalid phone type")); |
| } |
| connection.setAddress(handle, PhoneConstants.PRESENTATION_ALLOWED); |
| connection.setInitializing(); |
| connection.setVideoState(request.getVideoState()); |
| |
| return connection; |
| } |
| |
| @Override |
| public Connection onCreateIncomingConnection( |
| PhoneAccountHandle connectionManagerPhoneAccount, |
| ConnectionRequest request) { |
| Log.i(this, "onCreateIncomingConnection, request: " + request); |
| // If there is an incoming emergency CDMA Call (while the phone is in ECBM w/ No SIM), |
| // make sure the PhoneAccount lookup retrieves the default Emergency Phone. |
| PhoneAccountHandle accountHandle = request.getAccountHandle(); |
| boolean isEmergency = false; |
| if (accountHandle != null && PhoneUtils.EMERGENCY_ACCOUNT_HANDLE_ID.equals( |
| accountHandle.getId())) { |
| Log.i(this, "Emergency PhoneAccountHandle is being used for incoming call... " + |
| "Treat as an Emergency Call."); |
| isEmergency = true; |
| } |
| Phone phone = getPhoneForAccount(accountHandle, isEmergency); |
| if (phone == null) { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.ERROR_UNSPECIFIED, |
| "Phone is null")); |
| } |
| |
| Call call = phone.getRingingCall(); |
| if (!call.getState().isRinging()) { |
| Log.i(this, "onCreateIncomingConnection, no ringing call"); |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.INCOMING_MISSED, |
| "Found no ringing call")); |
| } |
| |
| com.android.internal.telephony.Connection originalConnection = |
| call.getState() == Call.State.WAITING ? |
| call.getLatestConnection() : call.getEarliestConnection(); |
| if (isOriginalConnectionKnown(originalConnection)) { |
| Log.i(this, "onCreateIncomingConnection, original connection already registered"); |
| return Connection.createCanceledConnection(); |
| } |
| |
| // We should rely on the originalConnection to get the video state. The request coming |
| // from Telecom does not know the video state of the incoming call. |
| int videoState = originalConnection != null ? originalConnection.getVideoState() : |
| VideoProfile.STATE_AUDIO_ONLY; |
| |
| Connection connection = |
| createConnectionFor(phone, originalConnection, false /* isOutgoing */, |
| request.getAccountHandle(), request.getTelecomCallId(), |
| request.getAddress(), videoState); |
| if (connection == null) { |
| return Connection.createCanceledConnection(); |
| } else { |
| return connection; |
| } |
| } |
| |
| @Override |
| public void triggerConferenceRecalculate() { |
| if (mTelephonyConferenceController.shouldRecalculate()) { |
| mTelephonyConferenceController.recalculate(); |
| } |
| } |
| |
| @Override |
| public Connection onCreateUnknownConnection(PhoneAccountHandle connectionManagerPhoneAccount, |
| ConnectionRequest request) { |
| Log.i(this, "onCreateUnknownConnection, request: " + request); |
| // Use the registered emergency Phone if the PhoneAccountHandle is set to Telephony's |
| // Emergency PhoneAccount |
| PhoneAccountHandle accountHandle = request.getAccountHandle(); |
| boolean isEmergency = false; |
| if (accountHandle != null && PhoneUtils.EMERGENCY_ACCOUNT_HANDLE_ID.equals( |
| accountHandle.getId())) { |
| Log.i(this, "Emergency PhoneAccountHandle is being used for unknown call... " + |
| "Treat as an Emergency Call."); |
| isEmergency = true; |
| } |
| Phone phone = getPhoneForAccount(accountHandle, isEmergency); |
| if (phone == null) { |
| return Connection.createFailedConnection( |
| DisconnectCauseUtil.toTelecomDisconnectCause( |
| android.telephony.DisconnectCause.ERROR_UNSPECIFIED, |
| "Phone is null")); |
| } |
| Bundle extras = request.getExtras(); |
| |
| final List<com.android.internal.telephony.Connection> allConnections = new ArrayList<>(); |
| |
| // Handle the case where an unknown connection has an IMS external call ID specified; we can |
| // skip the rest of the guesswork and just grad that unknown call now. |
| if (phone.getImsPhone() != null && extras != null && |
| extras.containsKey(ImsExternalCallTracker.EXTRA_IMS_EXTERNAL_CALL_ID)) { |
| |
| ImsPhone imsPhone = (ImsPhone) phone.getImsPhone(); |
| ImsExternalCallTracker externalCallTracker = imsPhone.getExternalCallTracker(); |
| int externalCallId = extras.getInt(ImsExternalCallTracker.EXTRA_IMS_EXTERNAL_CALL_ID, |
| -1); |
| |
| if (externalCallTracker != null) { |
| com.android.internal.telephony.Connection connection = |
| externalCallTracker.getConnectionById(externalCallId); |
| |
| if (connection != null) { |
| allConnections.add(connection); |
| } |
| } |
| } |
| |
| if (allConnections.isEmpty()) { |
| final Call ringingCall = phone.getRingingCall(); |
| if (ringingCall.hasConnections()) { |
| allConnections.addAll(ringingCall.getConnections()); |
| } |
| final Call foregroundCall = phone.getForegroundCall(); |
| if ((foregroundCall.getState() != Call.State.DISCONNECTED) |
| && (foregroundCall.hasConnections())) { |
| allConnections.addAll(foregroundCall.getConnections()); |
| } |
| if (phone.getImsPhone() != null) { |
| final Call imsFgCall = phone.getImsPhone().getForegroundCall(); |
| if ((imsFgCall.getState() != Call.State.DISCONNECTED) && imsFgCall |
| .hasConnections()) { |
| allConnections.addAll(imsFgCall.getConnections()); |
| } |
| } |
| final Call backgroundCall = phone.getBackgroundCall(); |
| if (backgroundCall.hasConnections()) { |
| allConnections.addAll(phone.getBackgroundCall().getConnections()); |
| } |
| } |
| |
| com.android.internal.telephony.Connection unknownConnection = null; |
| for (com.android.internal.telephony.Connection telephonyConnection : allConnections) { |
| if (!isOriginalConnectionKnown(telephonyConnection)) { |
| unknownConnection = telephonyConnection; |
| Log.d(this, "onCreateUnknownConnection: conn = " + unknownConnection); |
| break; |
| } |
| } |
| |
| if (unknownConnection == null) { |
| Log.i(this, "onCreateUnknownConnection, did not find previously unknown connection."); |
| return Connection.createCanceledConnection(); |
| } |
| |
| // We should rely on the originalConnection to get the video state. The request coming |
| // from Telecom does not know the video state of the unknown call. |
| int videoState = unknownConnection != null ? unknownConnection.getVideoState() : |
| VideoProfile.STATE_AUDIO_ONLY; |
| |
| TelephonyConnection connection = |
| createConnectionFor(phone, unknownConnection, |
| !unknownConnection.isIncoming() /* isOutgoing */, |
| request.getAccountHandle(), request.getTelecomCallId(), |
| request.getAddress(), videoState); |
| |
| if (connection == null) { |
| return Connection.createCanceledConnection(); |
| } else { |
| connection.updateState(); |
| return connection; |
| } |
| } |
| |
| /** |
| * Conferences two connections. |
| * |
| * Note: The {@link android.telecom.RemoteConnection#setConferenceableConnections(List)} API has |
| * a limitation in that it can only specify conferenceables which are instances of |
| * {@link android.telecom.RemoteConnection}. In the case of an {@link ImsConference}, the |
| * regular {@link Connection#setConferenceables(List)} API properly handles being able to merge |
| * a {@link Conference} and a {@link Connection}. As a result when, merging a |
| * {@link android.telecom.RemoteConnection} into a {@link android.telecom.RemoteConference} |
| * require merging a {@link ConferenceParticipantConnection} which is a child of the |
| * {@link Conference} with a {@link TelephonyConnection}. The |
| * {@link ConferenceParticipantConnection} class does not have the capability to initiate a |
| * conference merge, so we need to call |
| * {@link TelephonyConnection#performConference(Connection)} on either {@code connection1} or |
| * {@code connection2}, one of which is an instance of {@link TelephonyConnection}. |
| * |
| * @param connection1 A connection to merge into a conference call. |
| * @param connection2 A connection to merge into a conference call. |
| */ |
| @Override |
| public void onConference(Connection connection1, Connection connection2) { |
| if (connection1 instanceof TelephonyConnection) { |
| ((TelephonyConnection) connection1).performConference(connection2); |
| } else if (connection2 instanceof TelephonyConnection) { |
| ((TelephonyConnection) connection2).performConference(connection1); |
| } else { |
| Log.w(this, "onConference - cannot merge connections " + |
| "Connection1: %s, Connection2: %2", connection1, connection2); |
| } |
| } |
| |
| private boolean blockCallForwardingNumberWhileRoaming(Phone phone, String number) { |
| if (phone == null || TextUtils.isEmpty(number) || !phone.getServiceState().getRoaming()) { |
| return false; |
| } |
| String[] blockPrefixes = null; |
| CarrierConfigManager cfgManager = (CarrierConfigManager) |
| phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE); |
| if (cfgManager != null) { |
| blockPrefixes = cfgManager.getConfigForSubId(phone.getSubId()).getStringArray( |
| CarrierConfigManager.KEY_CALL_FORWARDING_BLOCKS_WHILE_ROAMING_STRING_ARRAY); |
| } |
| |
| if (blockPrefixes != null) { |
| for (String prefix : blockPrefixes) { |
| if (number.startsWith(prefix)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private boolean isRadioOn() { |
| boolean result = false; |
| for (Phone phone : PhoneFactory.getPhones()) { |
| result |= phone.isRadioOn(); |
| } |
| return result; |
| } |
| |
| private Pair<WeakReference<TelephonyConnection>, List<Phone>> makeCachedConnectionPhonePair( |
| TelephonyConnection c) { |
| List<Phone> phones = new ArrayList<>(Arrays.asList(PhoneFactory.getPhones())); |
| return new Pair<>(new WeakReference<>(c), phones); |
| } |
| |
| // Check the mEmergencyRetryCache to see if it contains the TelephonyConnection. If it doesn't, |
| // then it is stale. Create a new one! |
| private void updateCachedConnectionPhonePair(TelephonyConnection c) { |
| if (mEmergencyRetryCache == null) { |
| Log.i(this, "updateCachedConnectionPhonePair, cache is null. Generating new cache"); |
| mEmergencyRetryCache = makeCachedConnectionPhonePair(c); |
| } else { |
| // Check to see if old cache is stale. If it is, replace it |
| WeakReference<TelephonyConnection> cachedConnection = mEmergencyRetryCache.first; |
| if (cachedConnection.get() != c) { |
| Log.i(this, "updateCachedConnectionPhonePair, cache is stale. Regenerating."); |
| mEmergencyRetryCache = makeCachedConnectionPhonePair(c); |
| } |
| } |
| } |
| |
| /** |
| * Returns the first Phone that has not been used yet to place the call. Any Phones that have |
| * been used to place a call will have already been removed from mEmergencyRetryCache.second. |
| * The phone that it excluded will be removed from mEmergencyRetryCache.second in this method. |
| * @param phoneToExclude The Phone object that will be removed from our cache of available |
| * phones. |
| * @return the first Phone that is available to be used to retry the call. |
| */ |
| private Phone getPhoneForRedial(Phone phoneToExclude) { |
| List<Phone> cachedPhones = mEmergencyRetryCache.second; |
| if (cachedPhones.contains(phoneToExclude)) { |
| Log.i(this, "getPhoneForRedial, removing Phone[" + phoneToExclude.getPhoneId() + |
| "] from the available Phone cache."); |
| cachedPhones.remove(phoneToExclude); |
| } |
| return cachedPhones.isEmpty() ? null : cachedPhones.get(0); |
| } |
| |
| private void retryOutgoingOriginalConnection(TelephonyConnection c) { |
| updateCachedConnectionPhonePair(c); |
| Phone newPhoneToUse = getPhoneForRedial(c.getPhone()); |
| if (newPhoneToUse != null) { |
| int videoState = c.getVideoState(); |
| Bundle connExtras = c.getExtras(); |
| Log.i(this, "retryOutgoingOriginalConnection, redialing on Phone Id: " + newPhoneToUse); |
| c.clearOriginalConnection(); |
| placeOutgoingConnection(c, newPhoneToUse, videoState, connExtras); |
| } else { |
| // We have run out of Phones to use. Disconnect the call and destroy the connection. |
| Log.i(this, "retryOutgoingOriginalConnection, no more Phones to use. Disconnecting."); |
| c.setDisconnected(new DisconnectCause(DisconnectCause.ERROR)); |
| c.clearOriginalConnection(); |
| c.destroy(); |
| } |
| } |
| |
| private void placeOutgoingConnection( |
| TelephonyConnection connection, Phone phone, ConnectionRequest request) { |
| placeOutgoingConnection(connection, phone, request.getVideoState(), request.getExtras()); |
| } |
| |
| private void placeOutgoingConnection( |
| TelephonyConnection connection, Phone phone, int videoState, Bundle extras) { |
| String number = connection.getAddress().getSchemeSpecificPart(); |
| |
| com.android.internal.telephony.Connection originalConnection = null; |
| try { |
| if (phone != null) { |
| originalConnection = phone.dial(number, null, videoState, extras); |
| } |
| } catch (CallStateException e) { |
| Log.e(this, e, "placeOutgoingConnection, phone.dial exception: " + e); |
| int cause = android.telephony.DisconnectCause.OUTGOING_FAILURE; |
| if (e.getError() == CallStateException.ERROR_DISCONNECTED) { |
| cause = android.telephony.DisconnectCause.OUT_OF_SERVICE; |
| } else if (e.getError() == CallStateException.ERROR_POWER_OFF) { |
| cause = android.telephony.DisconnectCause.POWER_OFF; |
| } |
| connection.setDisconnected(DisconnectCauseUtil.toTelecomDisconnectCause( |
| cause, e.getMessage())); |
| return; |
| } |
| |
| if (originalConnection == null) { |
| int telephonyDisconnectCause = android.telephony.DisconnectCause.OUTGOING_FAILURE; |
| // On GSM phones, null connection means that we dialed an MMI code |
| if (phone.getPhoneType() == PhoneConstants.PHONE_TYPE_GSM) { |
| Log.d(this, "dialed MMI code"); |
| telephonyDisconnectCause = android.telephony.DisconnectCause.DIALED_MMI; |
| final Intent intent = new Intent(this, MMIDialogActivity.class); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); |
| startActivity(intent); |
| } |
| Log.d(this, "placeOutgoingConnection, phone.dial returned null"); |
| connection.setDisconnected(DisconnectCauseUtil.toTelecomDisconnectCause( |
| telephonyDisconnectCause, "Connection is null")); |
| } else { |
| connection.setOriginalConnection(originalConnection); |
| } |
| } |
| |
| private TelephonyConnection createConnectionFor( |
| Phone phone, |
| com.android.internal.telephony.Connection originalConnection, |
| boolean isOutgoing, |
| PhoneAccountHandle phoneAccountHandle, |
| String telecomCallId, |
| Uri address, |
| int videoState) { |
| TelephonyConnection returnConnection = null; |
| int phoneType = phone.getPhoneType(); |
| if (phoneType == TelephonyManager.PHONE_TYPE_GSM) { |
| returnConnection = new GsmConnection(originalConnection, telecomCallId); |
| } else if (phoneType == TelephonyManager.PHONE_TYPE_CDMA) { |
| boolean allowsMute = allowsMute(phone); |
| returnConnection = new CdmaConnection(originalConnection, mEmergencyTonePlayer, |
| allowsMute, isOutgoing, telecomCallId); |
| } |
| if (returnConnection != null) { |
| // Listen to Telephony specific callbacks from the connection |
| returnConnection.addTelephonyConnectionListener(mTelephonyConnectionListener); |
| returnConnection.setVideoPauseSupported( |
| TelecomAccountRegistry.getInstance(this).isVideoPauseSupported( |
| phoneAccountHandle)); |
| } |
| return returnConnection; |
| } |
| |
| private boolean isOriginalConnectionKnown( |
| com.android.internal.telephony.Connection originalConnection) { |
| for (Connection connection : getAllConnections()) { |
| if (connection instanceof TelephonyConnection) { |
| TelephonyConnection telephonyConnection = (TelephonyConnection) connection; |
| if (telephonyConnection.getOriginalConnection() == originalConnection) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private Phone getPhoneForAccount(PhoneAccountHandle accountHandle, boolean isEmergency) { |
| Phone chosenPhone = null; |
| int subId = PhoneUtils.getSubIdForPhoneAccountHandle(accountHandle); |
| if (subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) { |
| int phoneId = SubscriptionController.getInstance().getPhoneId(subId); |
| chosenPhone = PhoneFactory.getPhone(phoneId); |
| } |
| // If this is an emergency call and the phone we originally planned to make this call |
| // with is not in service or was invalid, try to find one that is in service, using the |
| // default as a last chance backup. |
| if (isEmergency && (chosenPhone == null || ServiceState.STATE_IN_SERVICE != chosenPhone |
| .getServiceState().getState())) { |
| Log.d(this, "getPhoneForAccount: phone for phone acct handle %s is out of service " |
| + "or invalid for emergency call.", accountHandle); |
| chosenPhone = getFirstPhoneForEmergencyCall(); |
| Log.d(this, "getPhoneForAccount: using subId: " + |
| (chosenPhone == null ? "null" : chosenPhone.getSubId())); |
| } |
| return chosenPhone; |
| } |
| |
| /** |
| * Retrieves the most sensible Phone to use for an emergency call using the following Priority |
| * list (for multi-SIM devices): |
| * 1) The User's SIM preference for Voice calling |
| * 2) The First Phone that is currently IN_SERVICE or is available for emergency calling |
| * 3) The Phone with more Capabilities. |
| * 4) The First Phone that has a SIM card in it (Starting from Slot 0...N) |
| * 5) The Default Phone (Currently set as Slot 0) |
| */ |
| private Phone getFirstPhoneForEmergencyCall() { |
| // 1) |
| int phoneId = SubscriptionManager.getDefaultVoicePhoneId(); |
| if (phoneId != SubscriptionManager.INVALID_PHONE_INDEX) { |
| Phone defaultPhone = PhoneFactory.getPhone(phoneId); |
| if (defaultPhone != null && isAvailableForEmergencyCalls(defaultPhone)) { |
| return defaultPhone; |
| } |
| } |
| |
| Phone firstPhoneWithSim = null; |
| int phoneCount = TelephonyManager.getDefault().getPhoneCount(); |
| List<Pair<Integer, Integer>> phoneNetworkType = new ArrayList<>(phoneCount); |
| for (int i = 0; i < phoneCount; i++) { |
| Phone phone = PhoneFactory.getPhone(i); |
| if (phone == null) |
| continue; |
| // 2) |
| if (isAvailableForEmergencyCalls(phone)) { |
| // the slot has the radio on & state is in service. |
| Log.i(this, "getFirstPhoneForEmergencyCall, radio on & in service, Phone Id:" + i); |
| return phone; |
| } |
| // 3) |
| // Store the RAF Capabilities for sorting later only if there are capabilities to sort. |
| int radioAccessFamily = phone.getRadioAccessFamily(); |
| if(RadioAccessFamily.getHighestRafCapability(radioAccessFamily) != 0) { |
| phoneNetworkType.add(new Pair<>(i, radioAccessFamily)); |
| Log.i(this, "getFirstPhoneForEmergencyCall, RAF:" + |
| Integer.toHexString(radioAccessFamily) + " saved for Phone Id:" + i); |
| } |
| // 4) |
| if (firstPhoneWithSim == null && TelephonyManager.getDefault().hasIccCard(i)) { |
| // The slot has a SIM card inserted, but is not in service, so keep track of this |
| // Phone. Do not return because we want to make sure that none of the other Phones |
| // are in service (because that is always faster). |
| Log.i(this, "getFirstPhoneForEmergencyCall, SIM card inserted, Phone Id:" + i); |
| firstPhoneWithSim = phone; |
| } |
| } |
| // 5) |
| if (firstPhoneWithSim == null && phoneNetworkType.isEmpty()) { |
| // No SIMs inserted, get the default. |
| Log.i(this, "getFirstPhoneForEmergencyCall, return default phone"); |
| return PhoneFactory.getDefaultPhone(); |
| } else { |
| // 3) |
| final Phone firstOccupiedSlot = firstPhoneWithSim; |
| if (!phoneNetworkType.isEmpty()) { |
| // Only sort if there are enough elements to do so. |
| if(phoneNetworkType.size() > 1) { |
| Collections.sort(phoneNetworkType, (o1, o2) -> { |
| // First start by sorting by number of RadioAccessFamily Capabilities. |
| int compare = Integer.bitCount(o1.second) - Integer.bitCount(o2.second); |
| if (compare == 0) { |
| // Sort by highest RAF Capability if the number is the same. |
| compare = RadioAccessFamily.getHighestRafCapability(o1.second) - |
| RadioAccessFamily.getHighestRafCapability(o2.second); |
| if (compare == 0 && firstOccupiedSlot != null) { |
| // If the RAF capability is the same, choose based on whether or not |
| // any of the slots are occupied with a SIM card (if both are, |
| // always choose the first). |
| if (o1.first == firstOccupiedSlot.getPhoneId()) { |
| return 1; |
| } else if (o2.first == firstOccupiedSlot.getPhoneId()) { |
| return -1; |
| } |
| // Compare is still 0, return equal. |
| } |
| } |
| return compare; |
| }); |
| } |
| int mostCapablePhoneId = phoneNetworkType.get(phoneNetworkType.size()-1).first; |
| Log.i(this, "getFirstPhoneForEmergencyCall, Using Phone Id: " + mostCapablePhoneId + |
| "with highest capability"); |
| return PhoneFactory.getPhone(mostCapablePhoneId); |
| } else { |
| // 4) |
| return firstPhoneWithSim; |
| } |
| } |
| } |
| |
| /** |
| * Returns true if the state of the Phone is IN_SERVICE or available for emergency calling only. |
| */ |
| private boolean isAvailableForEmergencyCalls(Phone phone) { |
| return ServiceState.STATE_IN_SERVICE == phone.getServiceState().getState() || |
| phone.getServiceState().isEmergencyOnly(); |
| } |
| |
| /** |
| * Determines if the connection should allow mute. |
| * |
| * @param phone The current phone. |
| * @return {@code True} if the connection should allow mute. |
| */ |
| private boolean allowsMute(Phone phone) { |
| // For CDMA phones, check if we are in Emergency Callback Mode (ECM). Mute is disallowed |
| // in ECM mode. |
| if (phone.getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA) { |
| if (phone.isInEcm()) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public void removeConnection(Connection connection) { |
| super.removeConnection(connection); |
| if (connection instanceof TelephonyConnection) { |
| TelephonyConnection telephonyConnection = (TelephonyConnection) connection; |
| telephonyConnection.removeTelephonyConnectionListener(mTelephonyConnectionListener); |
| } |
| } |
| |
| /** |
| * When a {@link TelephonyConnection} has its underlying original connection configured, |
| * we need to add it to the correct conference controller. |
| * |
| * @param connection The connection to be added to the controller |
| */ |
| public void addConnectionToConferenceController(TelephonyConnection connection) { |
| // TODO: Need to revisit what happens when the original connection for the |
| // TelephonyConnection changes. If going from CDMA --> GSM (for example), the |
| // instance of TelephonyConnection will still be a CdmaConnection, not a GsmConnection. |
| // The CDMA conference controller makes the assumption that it will only have CDMA |
| // connections in it, while the other conference controllers aren't as restrictive. Really, |
| // when we go between CDMA and GSM we should replace the TelephonyConnection. |
| if (connection.isImsConnection()) { |
| Log.d(this, "Adding IMS connection to conference controller: " + connection); |
| mImsConferenceController.add(connection); |
| mTelephonyConferenceController.remove(connection); |
| if (connection instanceof CdmaConnection) { |
| mCdmaConferenceController.remove((CdmaConnection) connection); |
| } |
| } else { |
| int phoneType = connection.getCall().getPhone().getPhoneType(); |
| if (phoneType == TelephonyManager.PHONE_TYPE_GSM) { |
| Log.d(this, "Adding GSM connection to conference controller: " + connection); |
| mTelephonyConferenceController.add(connection); |
| if (connection instanceof CdmaConnection) { |
| mCdmaConferenceController.remove((CdmaConnection) connection); |
| } |
| } else if (phoneType == TelephonyManager.PHONE_TYPE_CDMA && |
| connection instanceof CdmaConnection) { |
| Log.d(this, "Adding CDMA connection to conference controller: " + connection); |
| mCdmaConferenceController.add((CdmaConnection) connection); |
| mTelephonyConferenceController.remove(connection); |
| } |
| Log.d(this, "Removing connection from IMS conference controller: " + connection); |
| mImsConferenceController.remove(connection); |
| } |
| } |
| |
| /** |
| * Create a new CDMA connection. CDMA connections have additional limitations when creating |
| * additional calls which are handled in this method. Specifically, CDMA has a "FLASH" command |
| * that can be used for three purposes: merging a call, swapping unmerged calls, and adding |
| * a new outgoing call. The function of the flash command depends on the context of the current |
| * set of calls. This method will prevent an outgoing call from being made if it is not within |
| * the right circumstances to support adding a call. |
| */ |
| private Connection checkAdditionalOutgoingCallLimits(Phone phone) { |
| if (phone.getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA) { |
| // Check to see if any CDMA conference calls exist, and if they do, check them for |
| // limitations. |
| for (Conference conference : getAllConferences()) { |
| if (conference instanceof CdmaConference) { |
| CdmaConference cdmaConf = (CdmaConference) conference; |
| |
| // If the CDMA conference has not been merged, add-call will not work, so fail |
| // this request to add a call. |
| if (cdmaConf.can(Connection.CAPABILITY_MERGE_CONFERENCE)) { |
| return Connection.createFailedConnection(new DisconnectCause( |
| DisconnectCause.RESTRICTED, |
| null, |
| getResources().getString(R.string.callFailed_cdma_call_limit), |
| "merge-capable call exists, prevent flash command.")); |
| } |
| } |
| } |
| } |
| |
| return null; // null means nothing went wrong, and call should continue. |
| } |
| |
| private boolean isTtyModeEnabled(Context context) { |
| return (android.provider.Settings.Secure.getInt( |
| context.getContentResolver(), |
| android.provider.Settings.Secure.PREFERRED_TTY_MODE, |
| TelecomManager.TTY_MODE_OFF) != TelecomManager.TTY_MODE_OFF); |
| } |
| } |
