CarrierConfigManager.java revision c82d113279fb3a5b359074a835f5152decd21f78
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 android.annotation.NonNull;
20import android.annotation.Nullable;
21import android.annotation.SystemApi;
22import android.content.Context;
23import android.os.PersistableBundle;
24import android.os.RemoteException;
25import android.os.ServiceManager;
26
27import com.android.ims.ImsReasonInfo;
28import com.android.internal.telephony.ICarrierConfigLoader;
29
30/**
31 * Provides access to telephony configuration values that are carrier-specific.
32 * <p>
33 * Users should obtain an instance of this class by calling
34 * {@code mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE);}
35 * </p>
36 *
37 * @see Context#getSystemService
38 * @see Context#CARRIER_CONFIG_SERVICE
39 */
40public class CarrierConfigManager {
41    private final static String TAG = "CarrierConfigManager";
42
43    /**
44     * @hide
45     */
46    public CarrierConfigManager() {
47    }
48
49    /**
50     * This intent is broadcast by the system when carrier config changes.
51     */
52    public static final String
53            ACTION_CARRIER_CONFIG_CHANGED = "android.telephony.action.CARRIER_CONFIG_CHANGED";
54
55    // Below are the keys used in carrier config bundles. To add a new variable, define the key and
56    // give it a default value in sDefaults. If you need to ship a per-network override in the
57    // system image, that can be added in packages/apps/CarrierConfig.
58
59    /**
60     * This flag specifies whether VoLTE availability is based on provisioning. By default this is
61     * false.
62     */
63    public static final String
64            KEY_CARRIER_VOLTE_PROVISIONED_BOOL = "carrier_volte_provisioned_bool";
65
66    /**
67     * Flag indicating whether the Phone app should ignore EVENT_SIM_NETWORK_LOCKED
68     * events from the Sim.
69     * If true, this will prevent the IccNetworkDepersonalizationPanel from being shown, and
70     * effectively disable the "Sim network lock" feature.
71     */
72    public static final String
73            KEY_IGNORE_SIM_NETWORK_LOCKED_EVENTS_BOOL = "ignore_sim_network_locked_events_bool";
74
75    /**
76     * Flag indicating whether the Phone app should provide a "Dismiss" button on the SIM network
77     * unlock screen. The default value is true. If set to false, there will be *no way* to dismiss
78     * the SIM network unlock screen if you don't enter the correct unlock code. (One important
79     * consequence: there will be no way to make an Emergency Call if your SIM is network-locked and
80     * you don't know the PIN.)
81     */
82    public static final String
83            KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL = "sim_network_unlock_allow_dismiss_bool";
84
85    /** Flag indicating if the phone is a world phone */
86    public static final String KEY_WORLD_PHONE_BOOL = "world_phone_bool";
87
88    /**
89     * Flag to require or skip entitlement checks.
90     * If true, entitlement checks will be executed if device has been configured for it,
91     * If false, entitlement checks will be skipped.
92     */
93    public static final String
94            KEY_REQUIRE_ENTITLEMENT_CHECKS_BOOL = "require_entitlement_checks_bool";
95
96    /**
97     * Flag indicating whether radio is to be restarted on error PDP_FAIL_REGULAR_DEACTIVATION
98     * This is false by default.
99     */
100    public static final String
101            KEY_RESTART_RADIO_ON_PDP_FAIL_REGULAR_DEACTIVATION_BOOL =
102                    "restart_radio_on_pdp_fail_regular_deactivation_bool";
103
104    /**
105     * If true, enable vibration (haptic feedback) for key presses in the EmergencyDialer activity.
106     * The pattern is set on a per-platform basis using config_virtualKeyVibePattern. To be
107     * consistent with the regular Dialer, this value should agree with the corresponding values
108     * from config.xml under apps/Contacts.
109     */
110    public static final String
111            KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL = "enable_dialer_key_vibration_bool";
112
113    /** Flag indicating if dtmf tone type is enabled */
114    public static final String KEY_DTMF_TYPE_ENABLED_BOOL = "dtmf_type_enabled_bool";
115
116    /** Flag indicating if auto retry is enabled */
117    public static final String KEY_AUTO_RETRY_ENABLED_BOOL = "auto_retry_enabled_bool";
118
119    /**
120     * Determine whether we want to play local DTMF tones in a call, or just let the radio/BP handle
121     * playing of the tones.
122     */
123    public static final String KEY_ALLOW_LOCAL_DTMF_TONES_BOOL = "allow_local_dtmf_tones_bool";
124
125    /**
126     * If true, show an onscreen "Dial" button in the dialer. In practice this is used on all
127     * platforms, even the ones with hard SEND/END keys, but for maximum flexibility it's controlled
128     * by a flag here (which can be overridden on a per-product basis.)
129     */
130    public static final String KEY_SHOW_ONSCREEN_DIAL_BUTTON_BOOL = "show_onscreen_dial_button_bool";
131
132    /** Determines if device implements a noise suppression device for in call audio. */
133    public static final String
134            KEY_HAS_IN_CALL_NOISE_SUPPRESSION_BOOL = "has_in_call_noise_suppression_bool";
135
136    /**
137     * Determines if the current device should allow emergency numbers to be logged in the Call Log.
138     * (Some carriers require that emergency calls *not* be logged, presumably to avoid the risk of
139     * accidental redialing from the call log UI. This is a good idea, so the default here is
140     * false.)
141     */
142    public static final String
143            KEY_ALLOW_EMERGENCY_NUMBERS_IN_CALL_LOG_BOOL = "allow_emergency_numbers_in_call_log_bool";
144
145    /** If true, removes the Voice Privacy option from Call Settings */
146    public static final String KEY_VOICE_PRIVACY_DISABLE_UI_BOOL = "voice_privacy_disable_ui_bool";
147
148    /** Control whether users can reach the carrier portions of Cellular Network Settings. */
149    public static final String
150            KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL = "hide_carrier_network_settings_bool";
151
152    /** Control whether users can reach the SIM lock settings. */
153    public static final String
154            KEY_HIDE_SIM_LOCK_SETTINGS_BOOL = "hide_sim_lock_settings_bool";
155
156    /** Control whether users can edit APNs in Settings. */
157    public static final String KEY_APN_EXPAND_BOOL = "apn_expand_bool";
158
159    /** Control whether users can choose a network operator. */
160    public static final String KEY_OPERATOR_SELECTION_EXPAND_BOOL = "operator_selection_expand_bool";
161
162    /** Used in Cellular Network Settings for preferred network type. */
163    public static final String KEY_PREFER_2G_BOOL = "prefer_2g_bool";
164
165    /** Show cdma network mode choices 1x, 3G, global etc. */
166    public static final String KEY_SHOW_CDMA_CHOICES_BOOL = "show_cdma_choices_bool";
167
168    /** CDMA activation goes through HFA */
169    public static final String KEY_USE_HFA_FOR_PROVISIONING_BOOL = "use_hfa_for_provisioning_bool";
170
171    /**
172     * CDMA activation goes through OTASP.
173     * <p>
174     * TODO: This should be combined with config_use_hfa_for_provisioning and implemented as an enum
175     * (NONE, HFA, OTASP).
176     */
177    public static final String KEY_USE_OTASP_FOR_PROVISIONING_BOOL = "use_otasp_for_provisioning_bool";
178
179    /** Display carrier settings menu if true */
180    public static final String KEY_CARRIER_SETTINGS_ENABLE_BOOL = "carrier_settings_enable_bool";
181
182    /** Does not display additional call seting for IMS phone based on GSM Phone */
183    public static final String KEY_ADDITIONAL_CALL_SETTING_BOOL = "additional_call_setting_bool";
184
185    /** Show APN Settings for some CDMA carriers */
186    public static final String KEY_SHOW_APN_SETTING_CDMA_BOOL = "show_apn_setting_cdma_bool";
187
188    /** After a CDMA conference call is merged, the swap button should be displayed. */
189    public static final String KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL = "support_swap_after_merge_bool";
190
191    /**
192     * Since the default voicemail number is empty, if a SIM card does not have a voicemail number
193     * available the user cannot use voicemail. This flag allows the user to edit the voicemail
194     * number in such cases, and is false by default.
195     */
196    public static final String KEY_EDITABLE_VOICEMAIL_NUMBER_BOOL= "editable_voicemail_number_bool";
197
198    /**
199     * Determine whether the voicemail notification is persistent in the notification bar. If true,
200     * the voicemail notifications cannot be dismissed from the notification bar.
201     */
202    public static final String
203            KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL = "voicemail_notification_persistent_bool";
204
205    /** For IMS video over LTE calls, determines whether video pause signalling is supported. */
206    public static final String
207            KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL = "support_pause_ims_video_calls_bool";
208
209    /**
210     * Disables dialing "*228" (OTASP provisioning) on CDMA carriers where it is not supported or is
211     * potentially harmful by locking the SIM to 3G.
212     */
213    public static final String
214            KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL = "disable_cdma_activation_code_bool";
215
216    /**
217     * Override the platform's notion of a network operator being considered roaming.
218     * Value is string array of MCCMNCs to be considered roaming for 3GPP RATs.
219     */
220    public static final String
221            KEY_GSM_ROAMING_NETWORKS_STRING_ARRAY = "gsm_roaming_networks_string_array";
222
223    /**
224     * Override the platform's notion of a network operator being considered not roaming.
225     * Value is string array of MCCMNCs to be considered not roaming for 3GPP RATs.
226     */
227    public static final String
228            KEY_GSM_NONROAMING_NETWORKS_STRING_ARRAY = "gsm_nonroaming_networks_string_array";
229
230    /**
231     * Override the platform's notion of a network operator being considered roaming.
232     * Value is string array of SIDs to be considered roaming for 3GPP2 RATs.
233     */
234    public static final String
235            KEY_CDMA_ROAMING_NETWORKS_STRING_ARRAY = "cdma_roaming_networks_string_array";
236
237    /**
238     * Override the platform's notion of a network operator being considered non roaming.
239     * Value is string array of SIDs to be considered not roaming for 3GPP2 RATs.
240     */
241    public static final String
242            KEY_CDMA_NONROAMING_NETWORKS_STRING_ARRAY = "cdma_nonroaming_networks_string_array";
243
244    /**
245     * Override the platform's notion of a network operator being considered non roaming.
246     * If true all networks are considered as home network a.k.a non-roaming.  When false,
247     * the 2 pairs of CMDA and GSM roaming/non-roaming arrays are consulted.
248     *
249     * @see KEY_GSM_ROAMING_NETWORKS_STRING_ARRAY
250     * @see KEY_GSM_NONROAMING_NETWORKS_STRING_ARRAY
251     * @see KEY_CDMA_ROAMING_NETWORKS_STRING_ARRAY
252     * @see KEY_CDMA_NONROAMING_NETWORKS_STRING_ARRAY
253     */
254    public static final String
255            KEY_FORCE_HOME_NETWORK_BOOL = "force_home_network_bool";
256
257    /**
258     * Flag specifying whether VoLTE should be available for carrier, independent of carrier
259     * provisioning. If false: hard disabled. If true: then depends on carrier provisioning,
260     * availability, etc.
261     */
262    public static final String KEY_CARRIER_VOLTE_AVAILABLE_BOOL = "carrier_volte_available_bool";
263
264    /**
265     * Flag specifying whether video telephony is available for carrier. If false: hard disabled.
266     * If true: then depends on carrier provisioning, availability, etc.
267     */
268    public static final String KEY_CARRIER_VT_AVAILABLE_BOOL = "carrier_vt_available_bool";
269
270    /**
271     * Flag specifying whether the carrier wants to notify the user when a VT call has been handed
272     * over from WIFI to LTE.
273     * <p>
274     * The handover notification is sent as a
275     * {@link TelephonyManager#EVENT_HANDOVER_VIDEO_FROM_WIFI_TO_LTE}
276     * {@link android.telecom.Connection} event, which an {@link android.telecom.InCallService}
277     * should use to trigger the display of a user-facing message.
278     * <p>
279     * The Connection event is sent to the InCallService only once, the first time it occurs.
280     * @hide
281     */
282    public static final String KEY_NOTIFY_HANDOVER_VIDEO_FROM_WIFI_TO_LTE_BOOL =
283            "notify_handover_video_from_wifi_to_lte_bool";
284
285    /**
286     * Flag specifying whether the carrier supports downgrading a video call (tx, rx or tx/rx)
287     * directly to an audio call.
288     * @hide
289     */
290    public static final String KEY_SUPPORT_DOWNGRADE_VT_TO_AUDIO_BOOL =
291            "support_downgrade_vt_to_audio_bool";
292
293    /**
294     * Where there is no preloaded voicemail number on a SIM card, specifies the carrier's default
295     * voicemail number.
296     * When empty string, no default voicemail number is specified.
297     */
298    public static final String KEY_DEFAULT_VM_NUMBER_STRING = "default_vm_number_string";
299
300
301    /**
302     * Flag specifying whether WFC over IMS should be available for carrier: independent of
303     * carrier provisioning. If false: hard disabled. If true: then depends on carrier
304     * provisioning, availability etc.
305     */
306    public static final String KEY_CARRIER_WFC_IMS_AVAILABLE_BOOL = "carrier_wfc_ims_available_bool";
307
308    /**
309     * Specifies a map from dialstrings to replacements for roaming network service numbers which
310     * cannot be replaced on the carrier side.
311     * <p>
312     * Individual entries have the format:
313     * [dialstring to replace]:[replacement]
314     */
315    public static final String KEY_DIAL_STRING_REPLACE_STRING_ARRAY =
316            "dial_string_replace_string_array";
317
318    /**
319     * Flag specifying whether WFC over IMS supports the "wifi only" option.  If false, the wifi
320     * calling settings will not include an option for "wifi only".  If true, the wifi calling
321     * settings will include an option for "wifi only"
322     * <p>
323     * By default, it is assumed that WFC supports "wifi only".
324     */
325    public static final String KEY_CARRIER_WFC_SUPPORTS_WIFI_ONLY_BOOL =
326            "carrier_wfc_supports_wifi_only_bool";
327
328    /**
329     * Default WFC_IMS_MODE for home network   0: WIFI_ONLY
330     *                                         1: CELLULAR_PREFERRED
331     *                                         2: WIFI_PREFERRED
332     * @hide
333     */
334    public static final String KEY_CARRIER_DEFAULT_WFC_IMS_MODE_INT =
335            "carrier_default_wfc_ims_mode_int";
336
337    /**
338     * Default WFC_IMS_MODE for roaming
339     * See {@link KEY_CARRIER_DEFAULT_WFC_IMS_MODE_INT} for valid values.
340     *
341     * @hide
342     */
343    public static final String KEY_CARRIER_DEFAULT_WFC_IMS_ROAMING_MODE_INT =
344            "carrier_default_wfc_ims_roaming_mode_int";
345
346    /**
347     * Default WFC_IMS_enabled: true VoWiFi by default is on
348     *                          false VoWiFi by default is off
349     * @hide
350     */
351    public static final String KEY_CARRIER_DEFAULT_WFC_IMS_ENABLED_BOOL =
352            "carrier_default_wfc_ims_enabled_bool";
353
354    /**
355     * Default WFC_IMS_roaming_enabled: true VoWiFi roaming by default is on
356     *                                  false VoWiFi roaming by default is off
357     * @hide
358     */
359    public static final String KEY_CARRIER_DEFAULT_WFC_IMS_ROAMING_ENABLED_BOOL =
360            "carrier_default_wfc_ims_roaming_enabled_bool";
361
362    /**
363     * Flag indicating whether failed calls due to no service should prompt the user to enable
364     * WIFI calling.  When {@code true}, if the user attempts to establish a call when there is no
365     * service available, they are connected to WIFI, and WIFI calling is disabled, a different
366     * call failure message will be used to encourage the user to enable WIFI calling.
367     * @hide
368     */
369    public static final String KEY_CARRIER_PROMOTE_WFC_ON_CALL_FAIL_BOOL =
370            "carrier_promote_wfc_on_call_fail_bool";
371
372    /** Flag specifying whether provisioning is required for VOLTE. */
373    public static final String KEY_CARRIER_VOLTE_PROVISIONING_REQUIRED_BOOL
374            = "carrier_volte_provisioning_required_bool";
375
376    /** Flag specifying whether VoLTE TTY is supported. */
377    public static final String KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL
378            = "carrier_volte_tty_supported_bool";
379
380    /**
381     * Flag specifying whether IMS service can be turned off. If false then the service will not be
382     * turned-off completely, but individual features can be disabled.
383     */
384    public static final String KEY_CARRIER_ALLOW_TURNOFF_IMS_BOOL
385            = "carrier_allow_turnoff_ims_bool";
386
387    /**
388     * Flag specifying whether Generic Bootstrapping Architecture capable SIM is required for IMS.
389     */
390    public static final String KEY_CARRIER_IMS_GBA_REQUIRED_BOOL
391            = "carrier_ims_gba_required_bool";
392
393    /**
394     * Flag specifying whether IMS instant lettering is available for the carrier.  {@code True} if
395     * instant lettering is available for the carrier, {@code false} otherwise.
396     */
397    public static final String KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL =
398            "carrier_instant_lettering_available_bool";
399
400    /*
401     * Flag specifying whether IMS should be the first phone attempted for E911 even if the
402     * phone is not in service.
403     */
404    public static final String KEY_CARRIER_USE_IMS_FIRST_FOR_EMERGENCY_BOOL
405            = "carrier_use_ims_first_for_emergency_bool";
406
407    /**
408     * When IMS instant lettering is available for a carrier (see
409     * {@link #KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL}), determines the list of characters
410     * which may not be contained in messages.  Should be specified as a regular expression suitable
411     * for use with {@link String#matches(String)}.
412     */
413    public static final String KEY_CARRIER_INSTANT_LETTERING_INVALID_CHARS_STRING =
414            "carrier_instant_lettering_invalid_chars_string";
415
416    /**
417     * When IMS instant lettering is available for a carrier (see
418     * {@link #KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL}), determines a list of characters which
419     * must be escaped with a backslash '\' character.  Should be specified as a string containing
420     * the characters to be escaped.  For example to escape quote and backslash the string would be
421     * a quote and a backslash.
422     */
423    public static final String KEY_CARRIER_INSTANT_LETTERING_ESCAPED_CHARS_STRING =
424            "carrier_instant_lettering_escaped_chars_string";
425
426    /**
427     * When IMS instant lettering is available for a carrier (see
428     * {@link #KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL}), determines the character encoding
429     * which will be used when determining the length of messages.  Used in the InCall UI to limit
430     * the number of characters the user may type.  If empty-string, the instant lettering
431     * message size limit will be enforced on a 1:1 basis.  That is, each character will count
432     * towards the messages size limit as a single bye.  If a character encoding is specified, the
433     * message size limit will be based on the number of bytes in the message per the specified
434     * encoding.
435     */
436    public static final String KEY_CARRIER_INSTANT_LETTERING_ENCODING_STRING =
437            "carrier_instant_lettering_encoding_string";
438
439    /**
440     * When IMS instant lettering is available for a carrier (see
441     * {@link #KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL}), the length limit for messages.  Used
442     * in the InCall UI to ensure the user cannot enter more characters than allowed by the carrier.
443     * See also {@link #KEY_CARRIER_INSTANT_LETTERING_ENCODING_STRING} for more information on how
444     * the length of the message is calculated.
445     */
446    public static final String KEY_CARRIER_INSTANT_LETTERING_LENGTH_LIMIT_INT =
447            "carrier_instant_lettering_length_limit_int";
448
449    /**
450     * If Voice Radio Technology is RIL_RADIO_TECHNOLOGY_LTE:14 or RIL_RADIO_TECHNOLOGY_UNKNOWN:0
451     * this is the value that should be used instead. A configuration value of
452     * RIL_RADIO_TECHNOLOGY_UNKNOWN:0 means there is no replacement value and that the default
453     * assumption for phone type (GSM) should be used.
454     */
455    public static final String KEY_VOLTE_REPLACEMENT_RAT_INT = "volte_replacement_rat_int";
456
457    /**
458     * The default sim call manager to use when the default dialer doesn't implement one. A sim call
459     * manager can control and route outgoing and incoming phone calls, even if they're placed
460     * using another connection service (PSTN, for example).
461     */
462    public static final String KEY_DEFAULT_SIM_CALL_MANAGER_STRING = "default_sim_call_manager_string";
463
464    /**
465     * The default flag specifying whether ETWS/CMAS test setting is forcibly disabled in
466     * Settings->More->Emergency broadcasts menu even though developer options is turned on.
467     */
468    public static final String KEY_CARRIER_FORCE_DISABLE_ETWS_CMAS_TEST_BOOL =
469            "carrier_force_disable_etws_cmas_test_bool";
470
471    /**
472     * The default flag specifying whether "Turn on Notifications" option will be always shown in
473     * Settings->More->Emergency broadcasts menu regardless developer options is turned on or not.
474     */
475    public static final String KEY_ALWAYS_SHOW_EMERGENCY_ALERT_ONOFF_BOOL =
476            "always_show_emergency_alert_onoff_bool";
477
478    /**
479     * The flag to disable cell broadcast severe alert when extreme alert is disabled.
480     * @hide
481     */
482    public static final String KEY_DISABLE_SEVERE_WHEN_EXTREME_DISABLED_BOOL =
483            "disable_severe_when_extreme_disabled_bool";
484
485    /**
486     * The data call retry configuration for different types of APN.
487     * @hide
488     */
489    public static final String KEY_CARRIER_DATA_CALL_RETRY_CONFIG_STRINGS =
490            "carrier_data_call_retry_config_strings";
491
492    /**
493     * Delay between trying APN from the pool
494     * @hide
495     */
496    public static final String KEY_CARRIER_DATA_CALL_APN_DELAY_DEFAULT_LONG =
497            "carrier_data_call_apn_delay_default_long";
498
499    /**
500     * Faster delay between trying APN from the pool
501     * @hide
502     */
503    public static final String KEY_CARRIER_DATA_CALL_APN_DELAY_FASTER_LONG =
504            "carrier_data_call_apn_delay_faster_long";
505
506    /**
507     * Data call setup permanent failure causes by the carrier
508     */
509    public static final String KEY_CARRIER_DATA_CALL_PERMANENT_FAILURE_STRINGS =
510            "carrier_data_call_permanent_failure_strings";
511
512    /**
513     * Default APN types that are metered by the carrier
514     * @hide
515     */
516    public static final String KEY_CARRIER_METERED_APN_TYPES_STRINGS =
517            "carrier_metered_apn_types_strings";
518    /**
519     * Default APN types that are roamig-metered by the carrier
520     * @hide
521     */
522    public static final String KEY_CARRIER_METERED_ROAMING_APN_TYPES_STRINGS =
523            "carrier_metered_roaming_apn_types_strings";
524    /**
525     * CDMA carrier ERI (Enhanced Roaming Indicator) file name
526     * @hide
527     */
528    public static final String KEY_CARRIER_ERI_FILE_NAME_STRING =
529            "carrier_eri_file_name_string";
530
531    /* The following 3 fields are related to carrier visual voicemail. */
532
533    /**
534     * The carrier number mobile outgoing (MO) sms messages are sent to.
535     */
536    public static final String KEY_VVM_DESTINATION_NUMBER_STRING = "vvm_destination_number_string";
537
538    /**
539     * The port through which the mobile outgoing (MO) sms messages are sent through.
540     */
541    public static final String KEY_VVM_PORT_NUMBER_INT = "vvm_port_number_int";
542
543    /**
544     * The type of visual voicemail protocol the carrier adheres to. See {@link TelephonyManager}
545     * for possible values. For example {@link TelephonyManager#VVM_TYPE_OMTP}.
546     */
547    public static final String KEY_VVM_TYPE_STRING = "vvm_type_string";
548
549    /**
550     * Whether cellular data is required to access visual voicemail.
551     */
552    public static final String KEY_VVM_CELLULAR_DATA_REQUIRED_BOOL =
553        "vvm_cellular_data_required_bool";
554
555    /**
556     * Whether to prefetch audio data on new voicemail arrival, defaulted to true.
557     */
558    public static final String KEY_VVM_PREFETCH_BOOL = "vvm_prefetch_bool";
559
560    /**
561     * The package name of the carrier's visual voicemail app to ensure that dialer visual voicemail
562     * and carrier visual voicemail are not active at the same time.
563     */
564    public static final String KEY_CARRIER_VVM_PACKAGE_NAME_STRING = "carrier_vvm_package_name_string";
565
566    /**
567     * Flag specifying whether ICCID is showed in SIM Status screen, default to false.
568     */
569    public static final String KEY_SHOW_ICCID_IN_SIM_STATUS_BOOL = "show_iccid_in_sim_status_bool";
570
571    /**
572     * Flag specifying whether an additional (client initiated) intent needs to be sent on System
573     * update
574     */
575    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_BOOL = "ci_action_on_sys_update_bool";
576
577    /**
578     * Intent to be sent for the additional action on System update
579     */
580    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING =
581            "ci_action_on_sys_update_intent_string";
582
583    /**
584     * Extra to be included in the intent sent for additional action on System update
585     */
586    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING =
587            "ci_action_on_sys_update_extra_string";
588
589    /**
590     * Value of extra included in intent sent for additional action on System update
591     */
592    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING =
593            "ci_action_on_sys_update_extra_val_string";
594
595    /**
596     * Specifies the amount of gap to be added in millis between postdial DTMF tones. When a
597     * non-zero value is specified, the UE shall wait for the specified amount of time before it
598     * sends out successive DTMF tones on the network.
599     */
600    public static final String KEY_GSM_DTMF_TONE_DELAY_INT = "gsm_dtmf_tone_delay_int";
601
602    /**
603     * Specifies the amount of gap to be added in millis between DTMF tones. When a non-zero value
604     * is specified, the UE shall wait for the specified amount of time before it sends out
605     * successive DTMF tones on the network.
606     */
607    public static final String KEY_IMS_DTMF_TONE_DELAY_INT = "ims_dtmf_tone_delay_int";
608
609    /**
610     * Specifies the amount of gap to be added in millis between postdial DTMF tones. When a
611     * non-zero value is specified, the UE shall wait for the specified amount of time before it
612     * sends out successive DTMF tones on the network.
613     */
614    public static final String KEY_CDMA_DTMF_TONE_DELAY_INT = "cdma_dtmf_tone_delay_int";
615
616    /**
617     * Determines whether conference calls are supported by a carrier.  When {@code true},
618     * conference calling is supported, {@code false otherwise}.
619     */
620    public static final String KEY_SUPPORT_CONFERENCE_CALL_BOOL = "support_conference_call_bool";
621
622    /**
623     * Determines whether High Definition audio property is displayed in the dialer UI.
624     * If {@code false}, remove the HD audio property from the connection so that HD audio related
625     * UI is not displayed. If {@code true}, keep HD audio property as it is configured.
626     * @hide
627     */
628    public static final String KEY_DISPLAY_HD_AUDIO_PROPERTY_BOOL =
629            "display_hd_audio_property_bool";
630
631    /**
632     * Determines whether video conference calls are supported by a carrier.  When {@code true},
633     * video calls can be merged into conference calls, {@code false} otherwiwse.
634     * <p>
635     * Note: even if video conference calls are not supported, audio calls may be merged into a
636     * conference if {@link #KEY_SUPPORT_CONFERENCE_CALL_BOOL} is {@code true}.
637     * @hide
638     */
639    public static final String KEY_SUPPORT_VIDEO_CONFERENCE_CALL_BOOL =
640            "support_video_conference_call_bool";
641
642    /**
643     * Determine whether user can toggle Enhanced 4G LTE Mode in Settings.
644     */
645    public static final String KEY_EDITABLE_ENHANCED_4G_LTE_BOOL = "editable_enhanced_4g_lte_bool";
646
647    /**
648     * Determine whether IMS apn can be shown.
649     */
650    public static final String KEY_HIDE_IMS_APN_BOOL = "hide_ims_apn_bool";
651
652    /**
653     * Determine whether preferred network type can be shown.
654     */
655    public static final String KEY_HIDE_PREFERRED_NETWORK_TYPE_BOOL = "hide_preferred_network_type_bool";
656
657    /**
658     * Determine whether user can switch Wi-Fi preferred or Cellular preferred in calling preference.
659     * Some operators support Wi-Fi Calling only, not VoLTE.
660     * They don't need "Cellular preferred" option.
661     * In this case, set uneditalbe attribute for preferred preference.
662     * @hide
663     */
664    public static final String KEY_EDITABLE_WFC_MODE_BOOL = "editable_wfc_mode_bool";
665
666     /**
667      * Flag to indicate if Wi-Fi needs to be disabled in ECBM
668      * @hide
669      **/
670     public static final String
671              KEY_CONFIG_WIFI_DISABLE_IN_ECBM = "config_wifi_disable_in_ecbm";
672
673    /**
674     * List operator-specific error codes and indices of corresponding error strings in
675     * wfcOperatorErrorAlertMessages and wfcOperatorErrorNotificationMessages.
676     *
677     * Example: "REG09|0" specifies error code "REG09" and index "0". This index will be
678     * used to find alert and notification messages in wfcOperatorErrorAlertMessages and
679     * wfcOperatorErrorNotificationMessages.
680     *
681     * @hide
682     */
683    public static final String KEY_WFC_OPERATOR_ERROR_CODES_STRING_ARRAY =
684            "wfc_operator_error_codes_string_array";
685
686    /**
687     * Indexes of SPN format strings in wfcSpnFormats and wfcDataSpnFormats.
688     * @hide
689     */
690    public static final String KEY_WFC_SPN_FORMAT_IDX_INT = "wfc_spn_format_idx_int";
691    /** @hide */
692    public static final String KEY_WFC_DATA_SPN_FORMAT_IDX_INT = "wfc_data_spn_format_idx_int";
693
694    /**
695     * The Component Name of the activity that can setup the emergency addrees for WiFi Calling
696     * as per carrier requirement.
697     * @hide
698     */
699     public static final String KEY_WFC_EMERGENCY_ADDRESS_CARRIER_APP_STRING =
700            "wfc_emergency_address_carrier_app_string";
701
702    /**
703     * Boolean to decide whether to use #KEY_CARRIER_NAME_STRING from CarrierConfig app.
704     * @hide
705     */
706    public static final String KEY_CARRIER_NAME_OVERRIDE_BOOL = "carrier_name_override_bool";
707
708    /**
709     * String to identify carrier name in CarrierConfig app. This string is used only if
710     * #KEY_CARRIER_NAME_OVERRIDE_BOOL is true
711     * @hide
712     */
713    public static final String KEY_CARRIER_NAME_STRING = "carrier_name_string";
714
715    /**
716     * If this is true, the SIM card (through Customer Service Profile EF file) will be able to
717     * prevent manual operator selection. If false, this SIM setting will be ignored and manual
718     * operator selection will always be available. See CPHS4_2.WW6, CPHS B.4.7.1 for more
719     * information
720     */
721    public static final String KEY_CSP_ENABLED_BOOL = "csp_enabled_bool";
722
723    /**
724     * Allow user to add APNs
725     */
726    public static final String KEY_ALLOW_ADDING_APNS_BOOL = "allow_adding_apns_bool";
727
728    /**
729     * APN types that user is not allowed to modify
730     * @hide
731     */
732    public static final String KEY_READ_ONLY_APN_TYPES_STRING_ARRAY =
733            "read_only_apn_types_string_array";
734
735    /**
736     * APN fields that user is not allowed to modify
737     * @hide
738     */
739    public static final String KEY_READ_ONLY_APN_FIELDS_STRING_ARRAY =
740            "read_only_apn_fields_string_array";
741
742    /**
743     * Boolean indicating if intent for emergency call state changes should be broadcast
744     * @hide
745     */
746    public static final String KEY_BROADCAST_EMERGENCY_CALL_STATE_CHANGES_BOOL =
747            "broadcast_emergency_call_state_changes_bool";
748
749    /**
750     * Cell broadcast additional channels enbled by the carrier
751     * @hide
752     */
753    public static final String KEY_CARRIER_ADDITIONAL_CBS_CHANNELS_STRINGS =
754            "carrier_additional_cbs_channels_strings";
755
756    // These variables are used by the MMS service and exposed through another API, {@link
757    // SmsManager}. The variable names and string values are copied from there.
758    public static final String KEY_MMS_ALIAS_ENABLED_BOOL = "aliasEnabled";
759    public static final String KEY_MMS_ALLOW_ATTACH_AUDIO_BOOL = "allowAttachAudio";
760    public static final String KEY_MMS_APPEND_TRANSACTION_ID_BOOL = "enabledTransID";
761    public static final String KEY_MMS_GROUP_MMS_ENABLED_BOOL = "enableGroupMms";
762    public static final String KEY_MMS_MMS_DELIVERY_REPORT_ENABLED_BOOL = "enableMMSDeliveryReports";
763    public static final String KEY_MMS_MMS_ENABLED_BOOL = "enabledMMS";
764    public static final String KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL = "enableMMSReadReports";
765    public static final String KEY_MMS_MULTIPART_SMS_ENABLED_BOOL = "enableMultipartSMS";
766    public static final String KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL = "enabledNotifyWapMMSC";
767    public static final String KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL = "sendMultipartSmsAsSeparateMessages";
768    public static final String KEY_MMS_SHOW_CELL_BROADCAST_APP_LINKS_BOOL = "config_cellBroadcastAppLinks";
769    public static final String KEY_MMS_SMS_DELIVERY_REPORT_ENABLED_BOOL = "enableSMSDeliveryReports";
770    public static final String KEY_MMS_SUPPORT_HTTP_CHARSET_HEADER_BOOL = "supportHttpCharsetHeader";
771    public static final String KEY_MMS_SUPPORT_MMS_CONTENT_DISPOSITION_BOOL = "supportMmsContentDisposition";
772    public static final String KEY_MMS_ALIAS_MAX_CHARS_INT = "aliasMaxChars";
773    public static final String KEY_MMS_ALIAS_MIN_CHARS_INT = "aliasMinChars";
774    public static final String KEY_MMS_HTTP_SOCKET_TIMEOUT_INT = "httpSocketTimeout";
775    public static final String KEY_MMS_MAX_IMAGE_HEIGHT_INT = "maxImageHeight";
776    public static final String KEY_MMS_MAX_IMAGE_WIDTH_INT = "maxImageWidth";
777    public static final String KEY_MMS_MAX_MESSAGE_SIZE_INT = "maxMessageSize";
778    public static final String KEY_MMS_MESSAGE_TEXT_MAX_SIZE_INT = "maxMessageTextSize";
779    public static final String KEY_MMS_RECIPIENT_LIMIT_INT = "recipientLimit";
780    public static final String KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT = "smsToMmsTextLengthThreshold";
781    public static final String KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT = "smsToMmsTextThreshold";
782    public static final String KEY_MMS_SUBJECT_MAX_LENGTH_INT = "maxSubjectLength";
783    public static final String KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING = "emailGatewayNumber";
784    public static final String KEY_MMS_HTTP_PARAMS_STRING = "httpParams";
785    public static final String KEY_MMS_NAI_SUFFIX_STRING = "naiSuffix";
786    public static final String KEY_MMS_UA_PROF_TAG_NAME_STRING = "uaProfTagName";
787    public static final String KEY_MMS_UA_PROF_URL_STRING = "uaProfUrl";
788    public static final String KEY_MMS_USER_AGENT_STRING = "userAgent";
789    /** @hide */
790    public static final String KEY_MMS_CLOSE_CONNECTION_BOOL = "mmsCloseConnection";
791
792    /**
793     * If carriers require differentiate un-provisioned status: cold sim or out of credit sim
794     * a package name and activity name can be provided to launch a supported carrier application
795     * that check the sim provisioning status
796     * The first element is the package name and the second element is the activity name
797     * of the provisioning app
798     * example:
799     * <item>com.google.android.carrierPackageName</item>
800     * <item>com.google.android.carrierPackageName.CarrierActivityName</item>
801     * The ComponentName of the carrier activity that can setup the device and activate with the
802     * network as part of the Setup Wizard flow.
803     * @hide
804     */
805     public static final String KEY_CARRIER_SETUP_APP_STRING = "carrier_setup_app_string";
806
807    /**
808     * A list of component name of carrier signalling receivers which are interested in intent
809     * android.intent.action.CARRIER_SIGNAL_REDIRECTED.
810     * Example:
811     * <item>com.google.android.carrierPackageName/.CarrierSignalReceiverNameA</item>
812     * <item>com.google.android.carrierPackageName/.CarrierSignalReceiverNameB</item>
813     * @hide
814     */
815    public static final String KEY_SIGNAL_REDIRECTION_RECEIVER_STRING_ARRAY =
816            "signal_redirection_receiver_string_array";
817
818    /**
819     * A list of component name of carrier signalling receivers which are interested in intent
820     * android.intent.action.CARRIER_SIGNAL_REQUEST_NETWORK_FAILED.
821     * Example:
822     * <item>com.google.android.carrierPackageName/.CarrierSignalReceiverNameA</item>
823     * <item>com.google.android.carrierPackageName/.CarrierSignalReceiverNameB</item>
824     * @hide
825     */
826    public static final String KEY_SIGNAL_DCFAILURE_RECEIVER_STRING_ARRAY =
827            "signal_dcfailure_receiver_string_array";
828
829    /**
830     * A list of component name of carrier signalling receivers which are interested in intent
831     * android.intent.action.CARRIER_SIGNAL_PCO_VALUE.
832     * Example:
833     * <item>com.google.android.carrierPackageName/.CarrierSignalReceiverNameA</item>
834     * <item>com.google.android.carrierPackageName/.CarrierSignalReceiverNameB</item>
835     * @hide
836     */
837    public static final String KEY_SIGNAL_PCO_RECEIVER_STRING_ARRAY =
838            "signal_pco_receiver_string_array";
839
840    /**
841     * Determines whether the carrier supports making non-emergency phone calls while the phone is
842     * in emergency callback mode.  Default value is {@code true}, meaning that non-emergency calls
843     * are allowed in emergency callback mode.
844     */
845    public static final String KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL =
846            "allow_non_emergency_calls_in_ecm_bool";
847
848    /**
849     * Flag indicating whether to allow carrier video calls to emergency numbers.
850     * When {@code true}, video calls to emergency numbers will be allowed.  When {@code false},
851     * video calls to emergency numbers will be initiated as audio-only calls instead.
852     */
853    public static final String KEY_ALLOW_EMERGENCY_VIDEO_CALLS_BOOL =
854            "allow_emergency_video_calls_bool";
855
856    /**
857     * Flag indicating whether the carrier supports RCS presence indication for video calls.  When
858     * {@code true}, the carrier supports RCS presence indication for video calls.  When presence
859     * is supported, the device should use the
860     * {@link android.provider.ContactsContract.Data#CARRIER_PRESENCE} bit mask and set the
861     * {@link android.provider.ContactsContract.Data#CARRIER_PRESENCE_VT_CAPABLE} bit to indicate
862     * whether each contact supports video calling.  The UI is made aware that presence is enabled
863     * via {@link android.telecom.PhoneAccount#CAPABILITY_VIDEO_CALLING_RELIES_ON_PRESENCE}
864     * and can choose to hide or show the video calling icon based on whether a contact supports
865     * video.
866     */
867    public static final String KEY_USE_RCS_PRESENCE_BOOL = "use_rcs_presence_bool";
868
869    /**
870     * The duration in seconds that platform call and message blocking is disabled after the user
871     * contacts emergency services. Platform considers values in the range 0 to 604800 (one week) as
872     * valid. See {@link android.provider.BlockedNumberContract#isBlocked(Context, String)}).
873     */
874    public static final String KEY_DURATION_BLOCKING_DISABLED_AFTER_EMERGENCY_INT =
875            "duration_blocking_disabled_after_emergency_int";
876
877    /**
878     * For carriers which require an empty flash to be sent before sending the normal 3-way calling
879     * flash, the duration in milliseconds of the empty flash to send.  When {@code 0}, no empty
880     * flash is sent.
881     */
882    public static final String KEY_CDMA_3WAYCALL_FLASH_DELAY_INT = "cdma_3waycall_flash_delay_int";
883
884
885    /**
886     * @hide
887     * The default value for preferred CDMA roaming mode (aka CDMA system select.)
888     *          CDMA_ROAMING_MODE_RADIO_DEFAULT = the default roaming mode from the radio
889     *          CDMA_ROAMING_MODE_HOME = Home Networks
890     *          CDMA_ROAMING_MODE_AFFILIATED = Roaming on Affiliated networks
891     *          CDMA_ROAMING_MODE_ANY = Roaming on any networks
892     */
893    public static final String KEY_CDMA_ROAMING_MODE_INT = "cdma_roaming_mode_int";
894    /** @hide */
895    public static final int CDMA_ROAMING_MODE_RADIO_DEFAULT = -1;
896    /** @hide */
897    public static final int CDMA_ROAMING_MODE_HOME = 0;
898    /** @hide */
899    public static final int CDMA_ROAMING_MODE_AFFILIATED = 1;
900    /** @hide */
901    public static final int CDMA_ROAMING_MODE_ANY = 2;
902
903    /**
904     * Report IMEI as device id even if it's a CDMA/LTE phone.
905     *
906     * @hide
907     */
908    public static final String KEY_FORCE_IMEI_BOOL = "force_imei_bool";
909
910    /**
911     * The families of Radio Access Technologies that will get clustered and ratcheted,
912     * ie, we will report transitions up within the family, but not down until we change
913     * cells.  This prevents flapping between base technologies and higher techs that are
914     * granted on demand within the cell.
915     * @hide
916     */
917    public static final String KEY_RATCHET_RAT_FAMILIES =
918            "ratchet_rat_families";
919
920    /**
921     * Flag indicating whether some telephony logic will treat a call which was formerly a video
922     * call as if it is still a video call.  When {@code true}:
923     * <p>
924     * Logic which will automatically drop a video call which takes place over WIFI when a
925     * voice call is answered (see {@link #KEY_DROP_VIDEO_CALL_WHEN_ANSWERING_AUDIO_CALL_BOOL}.
926     * <p>
927     * Logic which determines whether the user can use TTY calling.
928     */
929    public static final String KEY_TREAT_DOWNGRADED_VIDEO_CALLS_AS_VIDEO_CALLS_BOOL =
930            "treat_downgraded_video_calls_as_video_calls_bool";
931
932    /**
933     * When {@code true}, if the user is in an ongoing video call over WIFI and answers an incoming
934     * audio call, the video call will be disconnected before the audio call is answered.  This is
935     * in contrast to the usual expected behavior where a foreground video call would be put into
936     * the background and held when an incoming audio call is answered.
937     */
938    public static final String KEY_DROP_VIDEO_CALL_WHEN_ANSWERING_AUDIO_CALL_BOOL =
939            "drop_video_call_when_answering_audio_call_bool";
940
941    /**
942     * Flag indicating whether the carrier supports merging wifi calls when VoWIFI is disabled.
943     * This can happen in the case of a carrier which allows offloading video calls to WIFI
944     * separately of whether voice over wifi is enabled.  In such a scenario when two video calls
945     * are downgraded to voice, they remain over wifi.  However, if VoWIFI is disabled, these calls
946     * cannot be merged.
947     */
948    public static final String KEY_ALLOW_MERGE_WIFI_CALLS_WHEN_VOWIFI_OFF_BOOL =
949            "allow_merge_wifi_calls_when_vowifi_off_bool";
950
951    /**
952     * Flag indicating whether the carrier supports the Hold command while in an IMS call.
953     * <p>
954     * The device configuration value {@code config_device_respects_hold_carrier_config} ultimately
955     * controls whether this carrier configuration option is used.  Where
956     * {@code config_device_respects_hold_carrier_config} is false, the value of the
957     * {@link #KEY_ALLOW_HOLD_IN_IMS_CALL_BOOL} carrier configuration option is ignored.
958     * @hide
959     */
960    public static final String KEY_ALLOW_HOLD_IN_IMS_CALL_BOOL = "allow_hold_in_ims_call";
961
962    /**
963     * When true, indicates that adding a call is disabled when there is an ongoing video call
964     * or when there is an ongoing call on wifi which was downgraded from video and VoWifi is
965     * turned off.
966     */
967    public static final String KEY_ALLOW_ADD_CALL_DURING_VIDEO_CALL_BOOL =
968            "allow_add_call_during_video_call";
969
970    /**
971     * When true, indicates that the HD audio icon in the in-call screen should not be shown for
972     * VoWifi calls.
973     * @hide
974     */
975    public static final String KEY_WIFI_CALLS_CAN_BE_HD_AUDIO = "wifi_calls_can_be_hd_audio";
976
977    /**
978     * When true, indicates that the HD audio icon in the in-call screen should not be shown for
979     * video calls.
980     * @hide
981     */
982    public static final String KEY_VIDEO_CALLS_CAN_BE_HD_AUDIO = "video_calls_can_be_hd_audio";
983
984    /**
985     * Defines operator-specific {@link com.android.ims.ImsReasonInfo} mappings.
986     *
987     * Format: "ORIGINAL_CODE|MESSAGE|NEW_CODE"
988     * Where {@code ORIGINAL_CODE} corresponds to a {@link ImsReasonInfo#getCode()} code,
989     * {@code MESSAGE} corresponds to an expected {@link ImsReasonInfo#getExtraMessage()} string,
990     * and {@code NEW_CODE} is the new {@code ImsReasonInfo#CODE_*} which this combination of
991     * original code and message shall be remapped to.
992     *
993     * Example: "501|call completion elsewhere|1014"
994     * When the {@link ImsReasonInfo#getCode()} is {@link ImsReasonInfo#CODE_USER_TERMINATED} and
995     * the {@link ImsReasonInfo#getExtraMessage()} is {@code "call completion elsewhere"},
996     * {@link ImsReasonInfo#CODE_ANSWERED_ELSEWHERE} shall be used as the {@link ImsReasonInfo}
997     * code instead.
998     * @hide
999     */
1000    public static final String KEY_IMS_REASONINFO_MAPPING_STRING_ARRAY =
1001            "ims_reasoninfo_mapping_string_array";
1002
1003    /**
1004     * When {@code false}, use default title for Enhanced 4G LTE Mode settings.
1005     * When {@code true}, use the variant.
1006     * @hide
1007     */
1008    public static final String KEY_ENHANCED_4G_LTE_TITLE_VARIANT_BOOL =
1009            "enhanced_4g_lte_title_variant_bool";
1010
1011    /**
1012     * Indicates whether the carrier wants to notify the user when handover of an LTE video call to
1013     * WIFI fails.
1014     * <p>
1015     * When {@code true}, if a video call starts on LTE and the modem reports a failure to handover
1016     * the call to WIFI or if no handover success is reported within 60 seconds of call initiation,
1017     * the {@link android.telephony.TelephonyManager#EVENT_HANDOVER_TO_WIFI_FAILED} event is raised
1018     * on the connection.
1019     * @hide
1020     */
1021    public static final String KEY_NOTIFY_VT_HANDOVER_TO_WIFI_FAILURE_BOOL =
1022            "notify_vt_handover_to_wifi_failure_bool";
1023
1024    /**
1025     * A upper case list of CNAP names that are unhelpful to the user for distinguising calls and
1026     * should be filtered out of the CNAP information. This includes CNAP names such as "WIRELESS
1027     * CALLER" or "UNKNOWN NAME". By default, if there are no filtered names for this carrier, null
1028     * is returned.
1029     * @hide
1030     */
1031    public static final String FILTERED_CNAP_NAMES_STRING_ARRAY = "filtered_cnap_names_string_array";
1032
1033    /**
1034     * The RCS configuration server URL. This URL is used to initiate RCS provisioning.
1035     */
1036    public static final String KEY_RCS_CONFIG_SERVER_URL_STRING = "rcs_config_server_url_string";
1037
1038    /**
1039     * Determine whether user can change Wi-Fi Calling preference in roaming.
1040     * {@code false} - roaming preference {@link KEY_CARRIER_DEFAULT_WFC_IMS_ROAMING_MODE_INT} is
1041     *                 the same as home preference {@link KEY_CARRIER_DEFAULT_WFC_IMS_MODE_INT}
1042     *                 and cannot be changed.
1043     * {@code true}  - roaming preference can be changed by user independently.
1044     *
1045     * @hide
1046     */
1047    public static final String KEY_EDITABLE_WFC_ROAMING_MODE_BOOL =
1048            "editable_wfc_roaming_mode_bool";
1049
1050    /** The default value for every variable. */
1051    private final static PersistableBundle sDefaults;
1052
1053    static {
1054        sDefaults = new PersistableBundle();
1055        sDefaults.putBoolean(KEY_ALLOW_HOLD_IN_IMS_CALL_BOOL, true);
1056        sDefaults.putBoolean(KEY_ADDITIONAL_CALL_SETTING_BOOL, true);
1057        sDefaults.putBoolean(KEY_ALLOW_EMERGENCY_NUMBERS_IN_CALL_LOG_BOOL, false);
1058        sDefaults.putBoolean(KEY_ALLOW_LOCAL_DTMF_TONES_BOOL, true);
1059        sDefaults.putBoolean(KEY_APN_EXPAND_BOOL, true);
1060        sDefaults.putBoolean(KEY_AUTO_RETRY_ENABLED_BOOL, false);
1061        sDefaults.putBoolean(KEY_CARRIER_SETTINGS_ENABLE_BOOL, false);
1062        sDefaults.putBoolean(KEY_CARRIER_VOLTE_AVAILABLE_BOOL, false);
1063        sDefaults.putBoolean(KEY_CARRIER_VT_AVAILABLE_BOOL, false);
1064        sDefaults.putBoolean(KEY_NOTIFY_HANDOVER_VIDEO_FROM_WIFI_TO_LTE_BOOL, false);
1065        sDefaults.putBoolean(KEY_SUPPORT_DOWNGRADE_VT_TO_AUDIO_BOOL, true);
1066        sDefaults.putString(KEY_DEFAULT_VM_NUMBER_STRING, "");
1067        sDefaults.putBoolean(KEY_CARRIER_WFC_IMS_AVAILABLE_BOOL, false);
1068        sDefaults.putBoolean(KEY_CARRIER_WFC_SUPPORTS_WIFI_ONLY_BOOL, false);
1069        sDefaults.putBoolean(KEY_CARRIER_DEFAULT_WFC_IMS_ENABLED_BOOL, false);
1070        sDefaults.putBoolean(KEY_CARRIER_DEFAULT_WFC_IMS_ROAMING_ENABLED_BOOL, false);
1071        sDefaults.putBoolean(KEY_CARRIER_PROMOTE_WFC_ON_CALL_FAIL_BOOL, false);
1072        sDefaults.putInt(KEY_CARRIER_DEFAULT_WFC_IMS_MODE_INT, 2);
1073        sDefaults.putInt(KEY_CARRIER_DEFAULT_WFC_IMS_ROAMING_MODE_INT, 2);
1074        sDefaults.putBoolean(KEY_CARRIER_FORCE_DISABLE_ETWS_CMAS_TEST_BOOL, false);
1075        sDefaults.putBoolean(KEY_CARRIER_VOLTE_PROVISIONING_REQUIRED_BOOL, false);
1076        sDefaults.putBoolean(KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL, true);
1077        sDefaults.putBoolean(KEY_CARRIER_ALLOW_TURNOFF_IMS_BOOL, true);
1078        sDefaults.putBoolean(KEY_CARRIER_IMS_GBA_REQUIRED_BOOL, false);
1079        sDefaults.putBoolean(KEY_CARRIER_INSTANT_LETTERING_AVAILABLE_BOOL, false);
1080        sDefaults.putBoolean(KEY_CARRIER_USE_IMS_FIRST_FOR_EMERGENCY_BOOL, true);
1081        sDefaults.putString(KEY_CARRIER_INSTANT_LETTERING_INVALID_CHARS_STRING, "");
1082        sDefaults.putString(KEY_CARRIER_INSTANT_LETTERING_ESCAPED_CHARS_STRING, "");
1083        sDefaults.putString(KEY_CARRIER_INSTANT_LETTERING_ENCODING_STRING, "");
1084        sDefaults.putInt(KEY_CARRIER_INSTANT_LETTERING_LENGTH_LIMIT_INT, 64);
1085        sDefaults.putBoolean(KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL, false);
1086        sDefaults.putBoolean(KEY_DTMF_TYPE_ENABLED_BOOL, false);
1087        sDefaults.putBoolean(KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL, true);
1088        sDefaults.putBoolean(KEY_HAS_IN_CALL_NOISE_SUPPRESSION_BOOL, false);
1089        sDefaults.putBoolean(KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL, false);
1090        sDefaults.putBoolean(KEY_HIDE_SIM_LOCK_SETTINGS_BOOL, false);
1091
1092        sDefaults.putBoolean(KEY_CARRIER_VOLTE_PROVISIONED_BOOL, false);
1093        sDefaults.putBoolean(KEY_IGNORE_SIM_NETWORK_LOCKED_EVENTS_BOOL, false);
1094        sDefaults.putBoolean(KEY_OPERATOR_SELECTION_EXPAND_BOOL, true);
1095        sDefaults.putBoolean(KEY_PREFER_2G_BOOL, true);
1096        sDefaults.putBoolean(KEY_SHOW_APN_SETTING_CDMA_BOOL, false);
1097        sDefaults.putBoolean(KEY_SHOW_CDMA_CHOICES_BOOL, false);
1098        sDefaults.putBoolean(KEY_SHOW_ONSCREEN_DIAL_BUTTON_BOOL, true);
1099        sDefaults.putBoolean(KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL, true);
1100        sDefaults.putBoolean(KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL, false);
1101        sDefaults.putBoolean(KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL, true);
1102        sDefaults.putBoolean(KEY_USE_HFA_FOR_PROVISIONING_BOOL, false);
1103        sDefaults.putBoolean(KEY_EDITABLE_VOICEMAIL_NUMBER_BOOL, false);
1104        sDefaults.putBoolean(KEY_USE_OTASP_FOR_PROVISIONING_BOOL, false);
1105        sDefaults.putBoolean(KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL, false);
1106        sDefaults.putBoolean(KEY_VOICE_PRIVACY_DISABLE_UI_BOOL, false);
1107        sDefaults.putBoolean(KEY_WORLD_PHONE_BOOL, false);
1108        sDefaults.putBoolean(KEY_REQUIRE_ENTITLEMENT_CHECKS_BOOL, true);
1109        sDefaults.putBoolean(KEY_RESTART_RADIO_ON_PDP_FAIL_REGULAR_DEACTIVATION_BOOL, false);
1110        sDefaults.putInt(KEY_VOLTE_REPLACEMENT_RAT_INT, 0);
1111        sDefaults.putString(KEY_DEFAULT_SIM_CALL_MANAGER_STRING, "");
1112        sDefaults.putString(KEY_VVM_DESTINATION_NUMBER_STRING, "");
1113        sDefaults.putInt(KEY_VVM_PORT_NUMBER_INT, 0);
1114        sDefaults.putString(KEY_VVM_TYPE_STRING, "");
1115        sDefaults.putBoolean(KEY_VVM_CELLULAR_DATA_REQUIRED_BOOL, false);
1116        sDefaults.putBoolean(KEY_VVM_PREFETCH_BOOL, true);
1117        sDefaults.putString(KEY_CARRIER_VVM_PACKAGE_NAME_STRING, "");
1118        sDefaults.putBoolean(KEY_SHOW_ICCID_IN_SIM_STATUS_BOOL, false);
1119        sDefaults.putBoolean(KEY_CI_ACTION_ON_SYS_UPDATE_BOOL, false);
1120        sDefaults.putString(KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING, "");
1121        sDefaults.putString(KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING, "");
1122        sDefaults.putString(KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING, "");
1123        sDefaults.putBoolean(KEY_CSP_ENABLED_BOOL, false);
1124        sDefaults.putBoolean(KEY_ALLOW_ADDING_APNS_BOOL, true);
1125        sDefaults.putStringArray(KEY_READ_ONLY_APN_TYPES_STRING_ARRAY, null);
1126        sDefaults.putStringArray(KEY_READ_ONLY_APN_FIELDS_STRING_ARRAY, null);
1127        sDefaults.putBoolean(KEY_BROADCAST_EMERGENCY_CALL_STATE_CHANGES_BOOL, false);
1128        sDefaults.putBoolean(KEY_ALWAYS_SHOW_EMERGENCY_ALERT_ONOFF_BOOL, false);
1129        sDefaults.putBoolean(KEY_DISABLE_SEVERE_WHEN_EXTREME_DISABLED_BOOL, true);
1130        sDefaults.putStringArray(KEY_CARRIER_DATA_CALL_RETRY_CONFIG_STRINGS, new String[]{
1131                "default:default_randomization=2000,5000,10000,20000,40000,80000:5000,160000:5000,"
1132                        + "320000:5000,640000:5000,1280000:5000,1800000:5000",
1133                "mms:default_randomization=2000,5000,10000,20000,40000,80000:5000,160000:5000,"
1134                        + "320000:5000,640000:5000,1280000:5000,1800000:5000",
1135                "others:max_retries=3, 5000, 5000, 5000"});
1136        sDefaults.putLong(KEY_CARRIER_DATA_CALL_APN_DELAY_DEFAULT_LONG, 20000);
1137        sDefaults.putLong(KEY_CARRIER_DATA_CALL_APN_DELAY_FASTER_LONG, 3000);
1138        sDefaults.putString(KEY_CARRIER_ERI_FILE_NAME_STRING, "eri.xml");
1139        sDefaults.putInt(KEY_DURATION_BLOCKING_DISABLED_AFTER_EMERGENCY_INT, 7200);
1140        sDefaults.putStringArray(KEY_CARRIER_METERED_APN_TYPES_STRINGS,
1141                new String[]{"default", "mms", "dun", "supl"});
1142        sDefaults.putStringArray(KEY_CARRIER_METERED_ROAMING_APN_TYPES_STRINGS,
1143                new String[]{"default", "mms", "dun", "supl"});
1144
1145        sDefaults.putStringArray(KEY_GSM_ROAMING_NETWORKS_STRING_ARRAY, null);
1146        sDefaults.putStringArray(KEY_GSM_NONROAMING_NETWORKS_STRING_ARRAY, null);
1147        sDefaults.putStringArray(KEY_CDMA_ROAMING_NETWORKS_STRING_ARRAY, null);
1148        sDefaults.putStringArray(KEY_CDMA_NONROAMING_NETWORKS_STRING_ARRAY, null);
1149        sDefaults.putStringArray(KEY_DIAL_STRING_REPLACE_STRING_ARRAY, null);
1150        sDefaults.putBoolean(KEY_FORCE_HOME_NETWORK_BOOL, false);
1151        sDefaults.putInt(KEY_GSM_DTMF_TONE_DELAY_INT, 0);
1152        sDefaults.putInt(KEY_IMS_DTMF_TONE_DELAY_INT, 0);
1153        sDefaults.putInt(KEY_CDMA_DTMF_TONE_DELAY_INT, 100);
1154        sDefaults.putInt(KEY_CDMA_3WAYCALL_FLASH_DELAY_INT , 0);
1155        sDefaults.putBoolean(KEY_SUPPORT_CONFERENCE_CALL_BOOL, true);
1156        sDefaults.putBoolean(KEY_SUPPORT_VIDEO_CONFERENCE_CALL_BOOL, false);
1157        sDefaults.putBoolean(KEY_DISPLAY_HD_AUDIO_PROPERTY_BOOL, true);
1158        sDefaults.putBoolean(KEY_EDITABLE_ENHANCED_4G_LTE_BOOL, true);
1159        sDefaults.putBoolean(KEY_HIDE_IMS_APN_BOOL, false);
1160        sDefaults.putBoolean(KEY_HIDE_PREFERRED_NETWORK_TYPE_BOOL, false);
1161        sDefaults.putBoolean(KEY_ALLOW_EMERGENCY_VIDEO_CALLS_BOOL, false);
1162        sDefaults.putBoolean(KEY_EDITABLE_WFC_MODE_BOOL, true);
1163        sDefaults.putStringArray(KEY_WFC_OPERATOR_ERROR_CODES_STRING_ARRAY, null);
1164        sDefaults.putInt(KEY_WFC_SPN_FORMAT_IDX_INT, 0);
1165        sDefaults.putInt(KEY_WFC_DATA_SPN_FORMAT_IDX_INT, 0);
1166        sDefaults.putString(KEY_WFC_EMERGENCY_ADDRESS_CARRIER_APP_STRING, "");
1167        sDefaults.putBoolean(KEY_CONFIG_WIFI_DISABLE_IN_ECBM, false);
1168        sDefaults.putBoolean(KEY_CARRIER_NAME_OVERRIDE_BOOL, false);
1169        sDefaults.putString(KEY_CARRIER_NAME_STRING, "");
1170
1171        // MMS defaults
1172        sDefaults.putBoolean(KEY_MMS_ALIAS_ENABLED_BOOL, false);
1173        sDefaults.putBoolean(KEY_MMS_ALLOW_ATTACH_AUDIO_BOOL, true);
1174        sDefaults.putBoolean(KEY_MMS_APPEND_TRANSACTION_ID_BOOL, false);
1175        sDefaults.putBoolean(KEY_MMS_GROUP_MMS_ENABLED_BOOL, true);
1176        sDefaults.putBoolean(KEY_MMS_MMS_DELIVERY_REPORT_ENABLED_BOOL, false);
1177        sDefaults.putBoolean(KEY_MMS_MMS_ENABLED_BOOL, true);
1178        sDefaults.putBoolean(KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL, false);
1179        sDefaults.putBoolean(KEY_MMS_MULTIPART_SMS_ENABLED_BOOL, true);
1180        sDefaults.putBoolean(KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL, false);
1181        sDefaults.putBoolean(KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL, false);
1182        sDefaults.putBoolean(KEY_MMS_SHOW_CELL_BROADCAST_APP_LINKS_BOOL, true);
1183        sDefaults.putBoolean(KEY_MMS_SMS_DELIVERY_REPORT_ENABLED_BOOL, true);
1184        sDefaults.putBoolean(KEY_MMS_SUPPORT_HTTP_CHARSET_HEADER_BOOL, false);
1185        sDefaults.putBoolean(KEY_MMS_SUPPORT_MMS_CONTENT_DISPOSITION_BOOL, true);
1186        sDefaults.putBoolean(KEY_MMS_CLOSE_CONNECTION_BOOL, false);
1187        sDefaults.putInt(KEY_MMS_ALIAS_MAX_CHARS_INT, 48);
1188        sDefaults.putInt(KEY_MMS_ALIAS_MIN_CHARS_INT, 2);
1189        sDefaults.putInt(KEY_MMS_HTTP_SOCKET_TIMEOUT_INT, 60 * 1000);
1190        sDefaults.putInt(KEY_MMS_MAX_IMAGE_HEIGHT_INT, 480);
1191        sDefaults.putInt(KEY_MMS_MAX_IMAGE_WIDTH_INT, 640);
1192        sDefaults.putInt(KEY_MMS_MAX_MESSAGE_SIZE_INT, 300 * 1024);
1193        sDefaults.putInt(KEY_MMS_MESSAGE_TEXT_MAX_SIZE_INT, -1);
1194        sDefaults.putInt(KEY_MMS_RECIPIENT_LIMIT_INT, Integer.MAX_VALUE);
1195        sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT, -1);
1196        sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT, -1);
1197        sDefaults.putInt(KEY_MMS_SUBJECT_MAX_LENGTH_INT, 40);
1198        sDefaults.putString(KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING, "");
1199        sDefaults.putString(KEY_MMS_HTTP_PARAMS_STRING, "");
1200        sDefaults.putString(KEY_MMS_NAI_SUFFIX_STRING, "");
1201        sDefaults.putString(KEY_MMS_UA_PROF_TAG_NAME_STRING, "x-wap-profile");
1202        sDefaults.putString(KEY_MMS_UA_PROF_URL_STRING, "");
1203        sDefaults.putString(KEY_MMS_USER_AGENT_STRING, "");
1204        sDefaults.putBoolean(KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL, true);
1205        sDefaults.putBoolean(KEY_USE_RCS_PRESENCE_BOOL, false);
1206        sDefaults.putBoolean(KEY_FORCE_IMEI_BOOL, false);
1207        sDefaults.putInt(KEY_CDMA_ROAMING_MODE_INT, CDMA_ROAMING_MODE_RADIO_DEFAULT);
1208        sDefaults.putString(KEY_RCS_CONFIG_SERVER_URL_STRING, "");
1209
1210        // Carrier Signalling Receivers
1211        sDefaults.putStringArray(KEY_SIGNAL_REDIRECTION_RECEIVER_STRING_ARRAY, null);
1212        sDefaults.putStringArray(KEY_SIGNAL_DCFAILURE_RECEIVER_STRING_ARRAY, null);
1213        sDefaults.putStringArray(KEY_SIGNAL_PCO_RECEIVER_STRING_ARRAY, null);
1214        sDefaults.putString(KEY_CARRIER_SETUP_APP_STRING, "");
1215
1216        // Rat families: {GPRS, EDGE}, {EVDO, EVDO_A, EVDO_B}, {UMTS, HSPA, HSDPA, HSUPA, HSPAP},
1217        // {LTE, LTE_CA}
1218        // Order is important - lowest precidence first
1219        sDefaults.putStringArray(KEY_RATCHET_RAT_FAMILIES,
1220                new String[]{"1,2","7,8,12","3,11,9,10,15","14,19"});
1221        sDefaults.putBoolean(KEY_TREAT_DOWNGRADED_VIDEO_CALLS_AS_VIDEO_CALLS_BOOL, false);
1222        sDefaults.putBoolean(KEY_DROP_VIDEO_CALL_WHEN_ANSWERING_AUDIO_CALL_BOOL, false);
1223        sDefaults.putBoolean(KEY_ALLOW_MERGE_WIFI_CALLS_WHEN_VOWIFI_OFF_BOOL, true);
1224        sDefaults.putBoolean(KEY_ALLOW_ADD_CALL_DURING_VIDEO_CALL_BOOL, true);
1225        sDefaults.putBoolean(KEY_WIFI_CALLS_CAN_BE_HD_AUDIO, true);
1226        sDefaults.putBoolean(KEY_VIDEO_CALLS_CAN_BE_HD_AUDIO, true);
1227
1228        sDefaults.putStringArray(KEY_IMS_REASONINFO_MAPPING_STRING_ARRAY, null);
1229        sDefaults.putBoolean(KEY_ENHANCED_4G_LTE_TITLE_VARIANT_BOOL, false);
1230        sDefaults.putBoolean(KEY_NOTIFY_VT_HANDOVER_TO_WIFI_FAILURE_BOOL, false);
1231        sDefaults.putStringArray(FILTERED_CNAP_NAMES_STRING_ARRAY, null);
1232        sDefaults.putBoolean(KEY_EDITABLE_WFC_ROAMING_MODE_BOOL, false);
1233    }
1234
1235    /**
1236     * Gets the configuration values for a particular subscription, which is associated with a
1237     * specific SIM card. If an invalid subId is used, the returned config will contain default
1238     * values.
1239     *
1240     * <p>Requires Permission:
1241     * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1242     *
1243     * @param subId the subscription ID, normally obtained from {@link SubscriptionManager}.
1244     * @return A {@link PersistableBundle} containing the config for the given subId, or default
1245     *         values for an invalid subId.
1246     */
1247    @Nullable
1248    public PersistableBundle getConfigForSubId(int subId) {
1249        try {
1250            ICarrierConfigLoader loader = getICarrierConfigLoader();
1251            if (loader == null) {
1252                Rlog.w(TAG, "Error getting config for subId " + subId
1253                        + " ICarrierConfigLoader is null");
1254                return null;
1255            }
1256            return loader.getConfigForSubId(subId);
1257        } catch (RemoteException ex) {
1258            Rlog.e(TAG, "Error getting config for subId " + subId + ": "
1259                    + ex.toString());
1260        }
1261        return null;
1262    }
1263
1264    /**
1265     * Gets the configuration values for the default subscription.
1266     *
1267     * <p>Requires Permission:
1268     * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1269     *
1270     * @see #getConfigForSubId
1271     */
1272    @Nullable
1273    public PersistableBundle getConfig() {
1274        return getConfigForSubId(SubscriptionManager.getDefaultSubscriptionId());
1275    }
1276
1277    /**
1278     * Calling this method triggers telephony services to fetch the current carrier configuration.
1279     * <p>
1280     * Normally this does not need to be called because the platform reloads config on its own.
1281     * This should be called by a carrier service app if it wants to update config at an arbitrary
1282     * moment.
1283     * </p>
1284     * <p>Requires that the calling app has carrier privileges.
1285     * @see #hasCarrierPrivileges
1286     * <p>
1287     * This method returns before the reload has completed, and
1288     * {@link android.service.carrier.CarrierService#onLoadConfig} will be called from an
1289     * arbitrary thread.
1290     * </p>
1291     */
1292    public void notifyConfigChangedForSubId(int subId) {
1293        try {
1294            ICarrierConfigLoader loader = getICarrierConfigLoader();
1295            if (loader == null) {
1296                Rlog.w(TAG, "Error reloading config for subId=" + subId
1297                        + " ICarrierConfigLoader is null");
1298                return;
1299            }
1300            loader.notifyConfigChangedForSubId(subId);
1301        } catch (RemoteException ex) {
1302            Rlog.e(TAG, "Error reloading config for subId=" + subId + ": " + ex.toString());
1303        }
1304    }
1305
1306    /**
1307     * Request the carrier config loader to update the cofig for phoneId.
1308     * <p>
1309     * Depending on simState, the config may be cleared or loaded from config app. This is only used
1310     * by SubscriptionInfoUpdater.
1311     * </p>
1312     *
1313     * @hide
1314     */
1315    @SystemApi
1316    public void updateConfigForPhoneId(int phoneId, String simState) {
1317        try {
1318            ICarrierConfigLoader loader = getICarrierConfigLoader();
1319            if (loader == null) {
1320                Rlog.w(TAG, "Error updating config for phoneId=" + phoneId
1321                        + " ICarrierConfigLoader is null");
1322                return;
1323            }
1324            loader.updateConfigForPhoneId(phoneId, simState);
1325        } catch (RemoteException ex) {
1326            Rlog.e(TAG, "Error updating config for phoneId=" + phoneId + ": " + ex.toString());
1327        }
1328    }
1329
1330    /**
1331     * Returns a new bundle with the default value for every supported configuration variable.
1332     *
1333     * @hide
1334     */
1335    @NonNull
1336    @SystemApi
1337    public static PersistableBundle getDefaultConfig() {
1338        return new PersistableBundle(sDefaults);
1339    }
1340
1341    /** @hide */
1342    @Nullable
1343    private ICarrierConfigLoader getICarrierConfigLoader() {
1344        return ICarrierConfigLoader.Stub
1345                .asInterface(ServiceManager.getService(Context.CARRIER_CONFIG_SERVICE));
1346    }
1347}
1348