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AT&T
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Phones (5)

Each phone's own settings and modem file, against what that phone had before.

PhonesSettingsModem file
iPhone 6s, 6s+not in that versionnot in that version
iPhone 6s, 6s+not in that versionnot in that version
iPhone 6, 6+44 changes9 changes
iPhone 5c (Global), 5c (GSM), 5s (Global), 5s (GSM)2 changesno change
iPhone 5 (Global), 5 (GSM)no changeno change
iPhone 6, 6+: overrides_N56_N61.plist
Key pathBeforeAfter
AllowedServicesTypeMaskOnInternetabsent32770
CarrierEntitlementsabsent{"ProtocolVersion":"2","SupportedEntitlements":397,"Authentication":{"Username":"0$IMSI@nai.epc.mnc$MNC.mcc$MCC.3gppnetwork.org","Type":1},"DisableSecondaryCredentials":false,"ServerAddress":"https://sentitlement2.mobile.att.net"}
DisallowCarrierMenuAtHometrueabsent
IMSConfig.CallTransferabsent{"CallTransferDialNumber":"*11","CallTransferToUri":"pull-SP-active@one.att.net","CallTransferOnlyIfIMSRegistered":true,"CallTransferRequestUri":"pull-VoLTE-active@one.att.net"}
IMSConfig.Media.BindMediaToTransportInterfaceabsenttrue
IMSConfig.Media.RTCPIntervalabsent5
IMSConfig.Media.StopLocalRingbackToneOn181absentfalse
IMSConfig.Media.dtmfDigitDurationabsent100
IMSConfig.Media.dtmfInterDigitIntervalabsent540
IMSConfig.Signaling.AccessBarringTypeabsentACB
IMSConfig.Signaling.AccessNetworkRefreshDelayMillisecondsabsent30000
IMSConfig.Signaling.AccessNetworkRefreshMethodabsentINVITE
IMSConfig.Signaling.AddLocationInInviteResponsesabsent180,183
IMSConfig.Signaling.AdditionalContactParamsabsent{"REGISTER,INVITE,INVITE:*":"+g.3gpp.mid-call;+g.3gpp.srvcc-alerting"}
IMSConfig.Signaling.AdditionalHeadersabsent{"INVITE[wifi,911]":["P-Emergency-Info: IEEE-802.11b;i-wlan-node-id=${DEVICE_REF_ID}","Supported: geolocation"]}
IMSConfig.Signaling.CSFBOnAccessBarredabsenttrue
IMSConfig.Signaling.ClearRegistrationCallIdOnDeinitializationabsenttrue
IMSConfig.Signaling.CountryOfOriginationFormatabsentBOTH
IMSConfig.Signaling.IgnoreFromHeaderForSenderNameabsentfalse
IMSConfig.Signaling.LocationForShortCodeCallsabsentBOTH
IMSConfig.Signaling.MaxReRegistrationAttemptsabsent0
IMSConfig.Signaling.StartLocalQosTimerOnSessionProgressabsenttrue
IMSConfig.Signaling.TriggerCSFBOnLocalQoSTimeoutMOabsentfalse
IMSConfig.Signaling.TriggerCSFBOnLocalQoSTimeoutMTabsentfalse
IMSConfig.Signaling.UseCIDUrlInPIDFabsenttrue
IMSConfig.Signaling.UseT3402ForPdpBackoffabsenttrue
IMSConfig.Signaling.UseTupleInPIDFabsenttrue
IMSConfig.Signaling.WifiAccessInfoabsent000000000000
IMSConfig.Signaling.maxFatalRegistrationErrors11
IMSConfig.Signaling.reRegisterOnErrorCodesINVITE:60,403,408,503,504REGISTER:480,500,503,504;INVITE:60,403,408,504
IMSConfig.Voice.CellularE911SearchTimeoutabsent5
IMSConfig.Voice.E911OverITechSupportedabsentfalse
IMSConfigSecondaryOverlayabsent
{"Signaling":{"DefaultLocalSipPort":0,"AdditionalHeaders":{"REGISTER":["Supported: gruu"],"REGISTER[wifi]":["P-IMS-Softphone-Label: 6172637469637365636f6e6461727921;${SHORT_DEVICE_CLASS};\"${DEVICE_NAME}\""]},"EmergencyURNs":{"911":"911@one.att.net","default":"urn:service:sos"},"conferenceServer":"s… 
{
  "Signaling": {
    "DefaultLocalSipPort": 0,
    "AdditionalHeaders": {
      "REGISTER": [
        "Supported: gruu"
      ],
      "REGISTER[wifi]": [
        "P-IMS-Softphone-Label: 6172637469637365636f6e6461727921;${SHORT_DEVICE_CLASS};\"${DEVICE_NAME}\""
      ]
    },
    "EmergencyURNs": {
      "911": "911@one.att.net",
      "default": "urn:service:sos"
    },
    "conferenceServer": "sip:n-way_voice@one.att.net",
    "AddQosOptionsToSockets": true,
    "ConnectivityType": "Wifi",
    "DefaultRemoteSipPort": 5061,
    "forceTls": true,
    "AdditionalContactParams": {
      "INVITE,INVITE:*": ""
    },
    "useIPSec": false,
    "forcedFeatureTags": ""
  },
  "Media": {
    "SRTPCryptoSuite": "AES_CM_128_HMAC_SHA1_80",
    "SRTPUnauthenticatedSRTP": false,
    "SRTPEndToAccessEdgeProtection": true,
    "SRTPUnencryptedSRTP": false,
    "SRTPUnencryptedSRTCP": false,
    "QosOptionsClass": "voice"
  },
  "Voice": {
    "BlockSilentRedialOverCS": true,
    "E911OverITechSupported": true,
    "E911OverIMSSupported": false
  }
}
Locationabsent{"EnableEarlyReturnDuringEmergencyMode":false,"EnableCPIDuringEmergencyMode":true}
OverrideOperatorWiFiNameabsentAT&T Wi-Fi
PriVersion0.1.1990.1.204
PushSettingsabsent{"VoWiFiTopic":"com.att.ent.cns.vowifi","VVMTopic":"com.att.ent.cns.vvm"}
SupportsIMSSignalingIndicationabsenttrue
TechSettingsabsent
{"ChildSAs":{"FirstChild":{"ChildProposals":[{"EncryptionAlgorithm":["AES-128"],"IntegrityAlgorithm":["SHA2-256"],"Lifetime":80000}],"InstallPolicies":true,"ReplayWindowSize":12}},"iRatPolicies":{"PreferredTechnologyRoaming":"wifi","PreferredTechnology":"cellular"},"ExtraConfigurationAttributeReques… 
{
  "ChildSAs": {
    "FirstChild": {
      "ChildProposals": [
        {
          "EncryptionAlgorithm": [
            "AES-128"
          ],
          "IntegrityAlgorithm": [
            "SHA2-256"
          ],
          "Lifetime": 80000
        }
      ],
      "InstallPolicies": true,
      "ReplayWindowSize": 12
    }
  },
  "iRatPolicies": {
    "PreferredTechnologyRoaming": "wifi",
    "PreferredTechnology": "cellular"
  },
  "ExtraConfigurationAttributeRequestv6": [
    {
      "Type": "IPv6Address",
      "Name": "AssignedPCSCFIPv6",
      "Identifier": 16386
    }
  ],
  "SupportContextSwitchOver": true,
  "WiFiCallingControlsAlliWLanServices": true,
  "WifiCallingAllowedInRoaming": false,
  "5wiServiceMask": 3,
  "DisconnectPreviousPathWhenHandover": true,
  "IKE": {
    "Proposals": [
      {
        "EncryptionAlgorithm": "AES-128",
        "DHGroup": 14,
        "EAPMethod": "EAP-AKA",
        "AuthenticationMethod": "None",
        "IntegrityAlgorithm": "SHA2-256",
        "Lifetime": 80000,
        "PRFAlgorithm": "SHA2-256"
      }
    ],
    "DeadPeerDetectionEnabled": false,
    "DeadPeerDetectionMaxRetries": 4,
    "DeadPeerDetectionInterval": 600,
    "LocalIdentifier": "0$imsi@nai.epc.mnc$mnc.mcc$mcc.3gppnetwork.org",
    "NATTKeepAliveOffload": true,
    "ValidateRemoteCertificate": false,
    "RemoteAddress": "epdg.epc.att.net",
    "DeadPeerDetectionRetryInterval": 10
  },
  "ExtraConfigurationAttributeRequestv4": [
    {
      "Type": "IPv4Address",
      "Name": "AssignedPCSCFIPv4",
      "Identifier": 16384
    }
  ],
  "SetHandOverIPv6Prefix": true,
  "TechPolicies": [
    {
      "policy": "cellData=false",
      "serviceMask": 1081367
    },
    {
      "policy": "true",
      "serviceMask": 131072
    },
    {
      "policy": "true",
      "serviceMask": 262144
    }
  ],
  "IPSecMTU": 1430,
  "SupportCallHandover": true
}
TechSettingsSecondaryOverlayabsent{"iRatPolicies":{"PreferredTechnology":"wifi"},"5wiServiceMask":1}
apns[0].tech-type-maskabsent1081367
apns[1].SupportSwitchOverabsenttrue
apns[1].tech-type-maskabsent131072
apns[2].tech-type-maskabsent262144
iPhone 6, 6+: overrides_N56_N61.pri
Key pathBeforeAfter
Carrier Configuration Management.Call Manager Feature Group[17]falsetrue
Carrier Configuration Management.Call Manager Feature Group[18]falseabsent
Carrier Configuration Management.Call Manager Feature Group[20]absenttrue
IMS.LTE SMS Domain Preferenceabsent1
IMS.SMS Domain Preference1absent
IMS.WCDMA SMS Domain Preferenceabsent1
LTE.LTE BAND Pref20617698388152062038274271
LTE.LTE FGI21317541702131754168
Maverick.PRI Revision0.1.1990.1.204
iPhone 5c (Global), 5c (GSM), 5s (Global), 5s (GSM): overrides_N48_N49_N51_N53.plist
Key pathBeforeAfter
DisallowCarrierMenuAtHometrueabsent
Locationabsent{"EnableEarlyReturnDuringEmergencyMode":false,"EnableCPIDuringEmergencyMode":true}
Routine changes (52 files): version number only, per-phone file, compared by phone above, signature
FileKindWhy it is routine
Dutch.lproj/locversion.plistchangedversion number only
English.lproj/locversion.plistchangedversion number only
French.lproj/locversion.plistchangedversion number only
German.lproj/locversion.plistchangedversion number only
Info.plistchangedversion number only
Italian.lproj/locversion.plistchangedversion number only
Japanese.lproj/locversion.plistchangedversion number only
Spanish.lproj/locversion.plistchangedversion number only
ar.lproj/locversion.plistchangedversion number only
ca.lproj/locversion.plistchangedversion number only
cs.lproj/locversion.plistchangedversion number only
da.lproj/locversion.plistchangedversion number only
el.lproj/locversion.plistchangedversion number only
en_AU.lproj/locversion.plistchangedversion number only
en_GB.lproj/locversion.plistchangedversion number only
es_MX.lproj/locversion.plistchangedversion number only
fi.lproj/locversion.plistchangedversion number only
fr_CA.lproj/locversion.plistchangedversion number only
he.lproj/locversion.plistchangedversion number only
hi.lproj/locversion.plistchangedversion number only
hr.lproj/locversion.plistchangedversion number only
hu.lproj/locversion.plistchangedversion number only
id.lproj/locversion.plistchangedversion number only
ko.lproj/locversion.plistchangedversion number only
ms.lproj/locversion.plistchangedversion number only
no.lproj/locversion.plistchangedversion number only
overrides_N48_N49_N51_N53.plistchangedper-phone file, compared by phone above
overrides_N56_N61.plistchangedper-phone file, compared by phone above
overrides_N56_N61.prichangedper-phone file, compared by phone above
overrides_N66_N71.der.priaddedper-phone file, compared by phone above
overrides_N66_N71.plistaddedper-phone file, compared by phone above
overrides_N66_N71.priaddedper-phone file, compared by phone above
pl.lproj/locversion.plistchangedversion number only
pt.lproj/locversion.plistchangedversion number only
pt_PT.lproj/locversion.plistchangedversion number only
ro.lproj/locversion.plistchangedversion number only
ru.lproj/locversion.plistchangedversion number only
signatures/common.plistchangedsignature
signatures/overrides_N41_N42.plistchangedsignature
signatures/overrides_N48_N49_N51_N53.plistchangedsignature
signatures/overrides_N56_N61.plistchangedsignature
signatures/overrides_N66_N71.plistaddedsignature
sk.lproj/locversion.plistchangedversion number only
sv.lproj/locversion.plistchangedversion number only
th.lproj/locversion.plistchangedversion number only
tr.lproj/locversion.plistchangedversion number only
uk.lproj/locversion.plistchangedversion number only
version.plistchangedversion number only
vi.lproj/locversion.plistchangedversion number only
zh_CN.lproj/locversion.plistchangedversion number only
zh_HK.lproj/locversion.plistchangedversion number only
zh_TW.lproj/locversion.plistchangedversion number only
carrier.plist changed 6 rows Before After only this file
Key pathBeforeAfter
MMS.OnWhileDataOffabsenttrue
SMSSettingsabsent{"UseAlternateVVMPort":true}
SupportedSIMs[1]310380absent
VisualVoicemailServiceNameACDSIMAP
com.apple.voicemail.acds{"UsesSSL":true}absent
com.apple.voicemail.imapabsent{"MaxGreetingDuration":120,"UsesSSL":true,"GreetingNotification":true,"MinPINLength":4,"UsesMWI":false,"BeaconAddress":"94183566","BypassSMSCAvailabilityCheck":true,"ClientManagesTrash":false,"MaxPINLength":15}