CarrierConfigManager.java revision 5bf0ca1b3a304faf265a6c3e63410b32f4fdb118
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.telephony;
18
19import com.android.internal.telephony.ICarrierConfigLoader;
20
21import android.annotation.NonNull;
22import android.annotation.Nullable;
23import android.annotation.SystemApi;
24import android.content.Context;
25import android.os.PersistableBundle;
26import android.os.RemoteException;
27import android.os.ServiceManager;
28
29/**
30 * Provides access to telephony configuration values that are carrier-specific.
31 * <p>
32 * Users should obtain an instance of this class by calling
33 * {@code mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE);}
34 * </p>
35 *
36 * @see Context#getSystemService
37 * @see Context#CARRIER_CONFIG_SERVICE
38 */
39public class CarrierConfigManager {
40    private final static String TAG = "CarrierConfigManager";
41
42    /**
43     * @hide
44     */
45    public CarrierConfigManager() {
46    }
47
48    /**
49     * This intent is broadcast by the system when carrier config changes.
50     */
51    public static final String
52            ACTION_CARRIER_CONFIG_CHANGED = "android.telephony.action.CARRIER_CONFIG_CHANGED";
53
54    // Below are the keys used in carrier config bundles. To add a new variable, define the key and
55    // give it a default value in sDefaults. If you need to ship a per-network override in the
56    // system image, that can be added in packages/apps/CarrierConfig.
57
58    /**
59     * Flag indicating whether the Phone app should ignore EVENT_SIM_NETWORK_LOCKED
60     * events from the Sim.
61     * If true, this will prevent the IccNetworkDepersonalizationPanel from being shown, and
62     * effectively disable the "Sim network lock" feature.
63     */
64    public static final String
65            KEY_IGNORE_SIM_NETWORK_LOCKED_EVENTS_BOOL = "ignore_sim_network_locked_events_bool";
66
67    /**
68     * Flag indicating whether the Phone app should provide a "Dismiss" button on the SIM network
69     * unlock screen. The default value is true. If set to false, there will be *no way* to dismiss
70     * the SIM network unlock screen if you don't enter the correct unlock code. (One important
71     * consequence: there will be no way to make an Emergency Call if your SIM is network-locked and
72     * you don't know the PIN.)
73     */
74    public static final String
75            KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL = "sim_network_unlock_allow_dismiss_bool";
76
77    /** Flag indicating if the phone is a world phone */
78    public static final String KEY_WORLD_PHONE_BOOL = "world_phone_bool";
79
80    /**
81     * If true, enable vibration (haptic feedback) for key presses in the EmergencyDialer activity.
82     * The pattern is set on a per-platform basis using config_virtualKeyVibePattern. To be
83     * consistent with the regular Dialer, this value should agree with the corresponding values
84     * from config.xml under apps/Contacts.
85     */
86    public static final String
87            KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL = "key_enable_dialer_vibration_bool";
88
89    /** Flag indicating if dtmf tone type is enabled */
90    public static final String KEY_DTMF_TYPE_ENABLED_BOOL = "dtmf_type_enabled_bool";
91
92    /** Flag indicating if auto retry is enabled */
93    public static final String KEY_AUTO_RETRY_ENABLED_BOOL = "auto_retry_enabled_bool";
94
95    /**
96     * Determine whether we want to play local DTMF tones in a call, or just let the radio/BP handle
97     * playing of the tones.
98     */
99    public static final String KEY_ALLOW_LOCAL_DTMF_TONES_BOOL = "allow_local_dtmf_tones_bool";
100
101    /**
102     * If true, show an onscreen "Dial" button in the dialer. In practice this is used on all
103     * platforms, even the ones with hard SEND/END keys, but for maximum flexibility it's controlled
104     * by a flag here (which can be overridden on a per-product basis.)
105     */
106    public static final String KEY_SHOW_ONSCREEN_DIAL_BUTTON_BOOL = "show_onscreen_dial_button_bool";
107
108    /** Determines if device implements a noise suppression device for in call audio. */
109    public static final String
110            KEY_HAS_IN_CALL_NOISE_SUPPRESSION_BOOL = "has_in_call_noise_suppression_bool";
111
112    /**
113     * Determines if the current device should allow emergency numbers to be logged in the Call Log.
114     * (Some carriers require that emergency calls *not* be logged, presumably to avoid the risk of
115     * accidental redialing from the call log UI. This is a good idea, so the default here is
116     * false.)
117     */
118    public static final String
119            KEY_ALLOW_EMERGENCY_NUMBERS_IN_CALL_LOG_BOOL = "allow_emergency_numbers_in_call_log_bool";
120
121    /** If true, removes the Voice Privacy option from Call Settings */
122    public static final String KEY_VOICE_PRIVACY_DISABLE_BOOL = "voice_privacy_disable_bool";
123
124    /** Control whether users can reach the carrier portions of Cellular Network Settings. */
125    public static final String
126            KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL = "hide_carrier_network_settings_bool";
127
128    /** Control whether users can edit APNs in Settings. */
129    public static final String KEY_APN_EXPAND_BOOL = "apn_expand_bool";
130
131    /** Control whether users can choose a network operator. */
132    public static final String KEY_OPERATOR_SELECTION_EXPAND_BOOL = "operator_selection_expand_bool";
133
134    /** Used in Cellular Network Settings for preferred network type. */
135    public static final String KEY_PREFER_2G_BOOL = "prefer_2g_bool";
136
137    /** Show cdma network mode choices 1x, 3G, global etc. */
138    public static final String KEY_SHOW_CDMA_CHOICES_BOOL = "show_cdma_choices_bool";
139
140    /** CDMA activation goes through HFA */
141    public static final String KEY_USE_HFA_FOR_PROVISIONING_BOOL = "use_hfa_for_provisioning_bool";
142
143    /**
144     * CDMA activation goes through OTASP.
145     * <p>
146     * TODO: This should be combined with config_use_hfa_for_provisioning and implemented as an enum
147     * (NONE, HFA, OTASP).
148     */
149    public static final String KEY_USE_OTASP_FOR_PROVISIONING_BOOL = "use_otasp_for_provisioning_bool";
150
151    /** Display carrier settings menu if true */
152    public static final String KEY_CARRIER_SETTINGS_ENABLE_BOOL = "carrier_settings_enable_bool";
153
154    /** Does not display additional call seting for IMS phone based on GSM Phone */
155    public static final String KEY_ADDITIONAL_CALL_SETTING_BOOL = "additional_call_setting_bool";
156
157    /** Show APN Settings for some CDMA carriers */
158    public static final String KEY_SHOW_APN_SETTING_CDMA_BOOL = "show_apn_setting_cdma_bool";
159
160    /** After a CDMA conference call is merged, the swap button should be displayed. */
161    public static final String KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL = "support_swap_after_merge_bool";
162
163    /**
164     * Determine whether the voicemail notification is persistent in the notification bar. If true,
165     * the voicemail notifications cannot be dismissed from the notification bar.
166     */
167    public static final String
168            KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL = "voicemail_notification_persistent_bool";
169
170    /** For IMS video over LTE calls, determines whether video pause signalling is supported. */
171    public static final String
172            KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL = "support_pause_ims_video_calls_bool";
173
174    /**
175     * Disables dialing "*228" (OTASP provisioning) on CDMA carriers where it is not supported or is
176     * potentially harmful by locking the SIM to 3G.
177     */
178    public static final String
179            KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL = "disable_cdma_activation_code_bool";
180
181    /**
182     * Flag specifying whether VoLTE should be available for carrier, independent of carrier
183     * provisioning. If false: hard disabled. If true: then depends on carrier provisioning,
184     * availability, etc.
185     */
186    public static final String KEY_CARRIER_VOLTE_AVAILABLE_BOOL = "carrier_volte_available_bool";
187
188    /** Flag specifying whether VoLTE availability is based on provisioning. */
189    public static final String KEY_CARRIER_VOLTE_PROVISIONED_BOOL = "carrier_volte_provisioned_bool";
190
191    /** Flag specifying whether VoLTE TTY is supported. */
192    public static final String KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL
193            = "carrier_volte_tty_supported_bool";
194
195    /**
196     * If Voice Radio Technology is RIL_RADIO_TECHNOLOGY_LTE:14 or RIL_RADIO_TECHNOLOGY_UNKNOWN:0
197     * this is the value that should be used instead. A configuration value of
198     * RIL_RADIO_TECHNOLOGY_UNKNOWN:0 means there is no replacement value and that the default
199     * assumption for phone type (GSM) should be used.
200     */
201    public static final String KEY_VOLTE_REPLACEMENT_RAT_INT = "volte_replacement_rat_int";
202
203    /* The following 3 fields are related to carrier visual voicemail. */
204
205    /**
206     * The carrier number MO sms messages are sent to.
207     *
208     * @hide
209     */
210    public static final String KEY_VVM_DESTINATION_NUMBER_STRING = "vvm_destination_number_string";
211
212    /**
213     * The port through which the MO sms messages are sent through.
214     *
215     * @hide
216     */
217    public static final String KEY_VVM_PORT_NUMBER_INT = "vvm_port_number_int";
218
219    /**
220     * The type of visual voicemail protocol the carrier adheres to. See {@link TelephonyManager}
221     * for possible values. For example {@link TelephonyManager#VVM_TYPE_OMTP}.
222     *
223     * @hide
224     */
225    public static final String KEY_VVM_TYPE_STRING = "vvm_type_string";
226
227    /**
228     * The package name of the carrier's visual voicemail app to ensure that dialer visual voicemail
229     * and carrier visual voicemail are not active at the same time.
230     *
231     * @hide
232     */
233    public static final String KEY_CARRIER_VVM_PACKAGE_NAME_STRING = "carrier_vvm_package_name_string";
234
235    // These variables are used by the MMS service and exposed through another API, {@link
236    // SmsManager}. The variable names and string values are copied from there.
237    public static final String KEY_MMS_ALIAS_ENABLED_BOOL = "aliasEnabled";
238    public static final String KEY_MMS_ALLOW_ATTACH_AUDIO_BOOL = "allowAttachAudio";
239    public static final String KEY_MMS_APPEND_TRANSACTION_ID_BOOL = "enabledTransID";
240    public static final String KEY_MMS_GROUP_MMS_ENABLED_BOOL = "enableGroupMms";
241    public static final String KEY_MMS_MMS_DELIVERY_REPORT_ENABLED_BOOL = "enableMMSDeliveryReports";
242    public static final String KEY_MMS_MMS_ENABLED_BOOL = "enabledMMS";
243    public static final String KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL = "enableMMSReadReports";
244    public static final String KEY_MMS_MULTIPART_SMS_ENABLED_BOOL = "enableMultipartSMS";
245    public static final String KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL = "enabledNotifyWapMMSC";
246    public static final String KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL = "sendMultipartSmsAsSeparateMessages";
247    public static final String KEY_MMS_SHOW_CELL_BROADCAST_APP_LINKS_BOOL = "config_cellBroadcastAppLinks";
248    public static final String KEY_MMS_SMS_DELIVERY_REPORT_ENABLED_BOOL = "enableSMSDeliveryReports";
249    public static final String KEY_MMS_SUPPORT_HTTP_CHARSET_HEADER_BOOL = "supportHttpCharsetHeader";
250    public static final String KEY_MMS_SUPPORT_MMS_CONTENT_DISPOSITION_BOOL = "supportMmsContentDisposition";
251    public static final String KEY_MMS_ALIAS_MAX_CHARS_INT = "aliasMaxChars";
252    public static final String KEY_MMS_ALIAS_MIN_CHARS_INT = "aliasMinChars";
253    public static final String KEY_MMS_HTTP_SOCKET_TIMEOUT_INT = "httpSocketTimeout";
254    public static final String KEY_MMS_MAX_IMAGE_HEIGHT_INT = "maxImageHeight";
255    public static final String KEY_MMS_MAX_IMAGE_WIDTH_INT = "maxImageWidth";
256    public static final String KEY_MMS_MAX_MESSAGE_SIZE_INT = "maxMessageSize";
257    public static final String KEY_MMS_MESSAGE_TEXT_MAX_SIZE_INT = "maxMessageTextSize";
258    public static final String KEY_MMS_RECIPIENT_LIMIT_INT = "recipientLimit";
259    public static final String KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT = "smsToMmsTextLengthThreshold";
260    public static final String KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT = "smsToMmsTextThreshold";
261    public static final String KEY_MMS_SUBJECT_MAX_LENGTH_INT = "maxSubjectLength";
262    public static final String KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING = "emailGatewayNumber";
263    public static final String KEY_MMS_HTTP_PARAMS_STRING = "httpParams";
264    public static final String KEY_MMS_NAI_SUFFIX_STRING = "naiSuffix";
265    public static final String KEY_MMS_UA_PROF_TAG_NAME_STRING = "uaProfTagName";
266    public static final String KEY_MMS_UA_PROF_URL_STRING = "uaProfUrl";
267    public static final String KEY_MMS_USER_AGENT_STRING = "userAgent";
268
269    /** The default value for every variable. */
270    private final static PersistableBundle sDefaults;
271
272    static {
273        sDefaults = new PersistableBundle();
274        sDefaults.putBoolean(KEY_ADDITIONAL_CALL_SETTING_BOOL, true);
275        sDefaults.putBoolean(KEY_ALLOW_EMERGENCY_NUMBERS_IN_CALL_LOG_BOOL, false);
276        sDefaults.putBoolean(KEY_ALLOW_LOCAL_DTMF_TONES_BOOL, true);
277        sDefaults.putBoolean(KEY_APN_EXPAND_BOOL, true);
278        sDefaults.putBoolean(KEY_AUTO_RETRY_ENABLED_BOOL, false);
279        sDefaults.putBoolean(KEY_CARRIER_SETTINGS_ENABLE_BOOL, false);
280        sDefaults.putBoolean(KEY_CARRIER_VOLTE_AVAILABLE_BOOL, false);
281        sDefaults.putBoolean(KEY_CARRIER_VOLTE_PROVISIONED_BOOL, false);
282        sDefaults.putBoolean(KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL, true);
283        sDefaults.putBoolean(KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL, false);
284        sDefaults.putBoolean(KEY_DTMF_TYPE_ENABLED_BOOL, false);
285        sDefaults.putBoolean(KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL, true);
286        sDefaults.putBoolean(KEY_HAS_IN_CALL_NOISE_SUPPRESSION_BOOL, false);
287        sDefaults.putBoolean(KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL, false);
288        sDefaults.putBoolean(KEY_IGNORE_SIM_NETWORK_LOCKED_EVENTS_BOOL, false);
289        sDefaults.putBoolean(KEY_OPERATOR_SELECTION_EXPAND_BOOL, true);
290        sDefaults.putBoolean(KEY_PREFER_2G_BOOL, true);
291        sDefaults.putBoolean(KEY_SHOW_APN_SETTING_CDMA_BOOL, false);
292        sDefaults.putBoolean(KEY_SHOW_CDMA_CHOICES_BOOL, false);
293        sDefaults.putBoolean(KEY_SHOW_ONSCREEN_DIAL_BUTTON_BOOL, true);
294        sDefaults.putBoolean(KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL, true);
295        sDefaults.putBoolean(KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL, true);
296        sDefaults.putBoolean(KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL, true);
297        sDefaults.putBoolean(KEY_USE_HFA_FOR_PROVISIONING_BOOL, false);
298        sDefaults.putBoolean(KEY_USE_OTASP_FOR_PROVISIONING_BOOL, false);
299        sDefaults.putBoolean(KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL, false);
300        sDefaults.putBoolean(KEY_VOICE_PRIVACY_DISABLE_BOOL, false);
301        sDefaults.putBoolean(KEY_WORLD_PHONE_BOOL, false);
302        sDefaults.putInt(KEY_VOLTE_REPLACEMENT_RAT_INT, 0);
303        sDefaults.putString(KEY_VVM_DESTINATION_NUMBER_STRING, "");
304        sDefaults.putInt(KEY_VVM_PORT_NUMBER_INT, 0);
305        sDefaults.putString(KEY_VVM_TYPE_STRING, "");
306        sDefaults.putString(KEY_CARRIER_VVM_PACKAGE_NAME_STRING, "");
307
308        // MMS defaults
309        sDefaults.putBoolean(KEY_MMS_ALIAS_ENABLED_BOOL, false);
310        sDefaults.putBoolean(KEY_MMS_ALLOW_ATTACH_AUDIO_BOOL, true);
311        sDefaults.putBoolean(KEY_MMS_APPEND_TRANSACTION_ID_BOOL, false);
312        sDefaults.putBoolean(KEY_MMS_GROUP_MMS_ENABLED_BOOL, true);
313        sDefaults.putBoolean(KEY_MMS_MMS_DELIVERY_REPORT_ENABLED_BOOL, false);
314        sDefaults.putBoolean(KEY_MMS_MMS_ENABLED_BOOL, true);
315        sDefaults.putBoolean(KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL, false);
316        sDefaults.putBoolean(KEY_MMS_MULTIPART_SMS_ENABLED_BOOL, true);
317        sDefaults.putBoolean(KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL, false);
318        sDefaults.putBoolean(KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL, false);
319        sDefaults.putBoolean(KEY_MMS_SHOW_CELL_BROADCAST_APP_LINKS_BOOL, true);
320        sDefaults.putBoolean(KEY_MMS_SMS_DELIVERY_REPORT_ENABLED_BOOL, true);
321        sDefaults.putBoolean(KEY_MMS_SUPPORT_HTTP_CHARSET_HEADER_BOOL, false);
322        sDefaults.putBoolean(KEY_MMS_SUPPORT_MMS_CONTENT_DISPOSITION_BOOL, true);
323        sDefaults.putInt(KEY_MMS_ALIAS_MAX_CHARS_INT, 48);
324        sDefaults.putInt(KEY_MMS_ALIAS_MIN_CHARS_INT, 2);
325        sDefaults.putInt(KEY_MMS_HTTP_SOCKET_TIMEOUT_INT, 60 * 1000);
326        sDefaults.putInt(KEY_MMS_MAX_IMAGE_HEIGHT_INT, 480);
327        sDefaults.putInt(KEY_MMS_MAX_IMAGE_WIDTH_INT, 640);
328        sDefaults.putInt(KEY_MMS_MAX_MESSAGE_SIZE_INT, 300 * 1024);
329        sDefaults.putInt(KEY_MMS_MESSAGE_TEXT_MAX_SIZE_INT, -1);
330        sDefaults.putInt(KEY_MMS_RECIPIENT_LIMIT_INT, Integer.MAX_VALUE);
331        sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT, -1);
332        sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT, -1);
333        sDefaults.putInt(KEY_MMS_SUBJECT_MAX_LENGTH_INT, 40);
334        sDefaults.putString(KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING, "");
335        sDefaults.putString(KEY_MMS_HTTP_PARAMS_STRING, "");
336        sDefaults.putString(KEY_MMS_NAI_SUFFIX_STRING, "");
337        sDefaults.putString(KEY_MMS_UA_PROF_TAG_NAME_STRING, "x-wap-profile");
338        sDefaults.putString(KEY_MMS_UA_PROF_URL_STRING, "");
339        sDefaults.putString(KEY_MMS_USER_AGENT_STRING, "");
340    }
341
342    /**
343     * Gets the configuration values for a particular subscription, which is associated with a
344     * specific SIM card. If an invalid subId is used, the returned config will contain default
345     * values.
346     *
347     * @param subId the subscription ID, normally obtained from {@link SubscriptionManager}.
348     * @return A {@link PersistableBundle} containing the config for the given subId, or default
349     *         values for an invalid subId.
350     */
351    @Nullable
352    public PersistableBundle getConfigForSubId(int subId) {
353        try {
354            return getICarrierConfigLoader().getConfigForSubId(subId);
355        } catch (RemoteException ex) {
356            Rlog.e(TAG, "Error getting config for subId " + Integer.toString(subId) + ": "
357                    + ex.toString());
358        } catch (NullPointerException ex) {
359            Rlog.e(TAG, "Error getting config for subId " + Integer.toString(subId) + ": "
360                    + ex.toString());
361        }
362        return null;
363    }
364
365    /**
366     * Gets the configuration values for the default subscription.
367     *
368     * @see #getConfigForSubId
369     */
370    @Nullable
371    public PersistableBundle getConfig() {
372        return getConfigForSubId(SubscriptionManager.getDefaultSubId());
373    }
374
375    /**
376     * Calling this method triggers telephony services to fetch the current carrier configuration.
377     * <p>
378     * Normally this does not need to be called because the platform reloads config on its own.
379     * This should be called by a carrier service app if it wants to update config at an arbitrary
380     * moment.
381     * </p>
382     * <p>
383     * This method returns before the reload has completed, and
384     * {@link android.service.carrier.CarrierService#onLoadConfig} will be called from an
385     * arbitrary thread.
386     * </p>
387     */
388    public void notifyConfigChangedForSubId(int subId) {
389        try {
390            getICarrierConfigLoader().notifyConfigChangedForSubId(subId);
391        } catch (RemoteException ex) {
392            Rlog.e(TAG, "Error reloading config for subId=" + subId + ": " + ex.toString());
393        } catch (NullPointerException ex) {
394            Rlog.e(TAG, "Error reloading config for subId=" + subId + ": " + ex.toString());
395        }
396    }
397
398    /**
399     * Request the carrier config loader to update the cofig for phoneId.
400     * <p>
401     * Depending on simState, the config may be cleared or loaded from config app. This is only used
402     * by SubscriptionInfoUpdater.
403     * </p>
404     *
405     * @hide
406     */
407    @SystemApi
408    public void updateConfigForPhoneId(int phoneId, String simState) {
409        try {
410            getICarrierConfigLoader().updateConfigForPhoneId(phoneId, simState);
411        } catch (RemoteException ex) {
412            Rlog.e(TAG, "Error updating config for phoneId=" + phoneId + ": " + ex.toString());
413        } catch (NullPointerException ex) {
414            Rlog.e(TAG, "Error updating config for phoneId=" + phoneId + ": " + ex.toString());
415        }
416    }
417
418    /**
419     * Returns a new bundle with the default value for every supported configuration variable.
420     *
421     * @hide
422     */
423    @NonNull
424    @SystemApi
425    public static PersistableBundle getDefaultConfig() {
426        return new PersistableBundle(sDefaults);
427    }
428
429    /** @hide */
430    private ICarrierConfigLoader getICarrierConfigLoader() {
431        return ICarrierConfigLoader.Stub
432                .asInterface(ServiceManager.getService(Context.CARRIER_CONFIG_SERVICE));
433    }
434}
435