| aIMSConfig | absent | {"Signaling":{"PrivacyHeaderValue":"header","ForcedFeatureTags":"voice,sms","MaxFatalRegistrationErrors":1,"MaxReRegistrationAttempts":0,"LocalQoSTimeoutMTSeconds":6,"AdditionalHeaders":{"INVITE[wifi,911]":["P-Emergency-Info: IEEE-802.11b;i-wlan-node-id=${DEVICE_REF_ID}","Supported: geolocation"]},"… {
"Signaling": {
"PrivacyHeaderValue": "header",
"ForcedFeatureTags": "voice,sms",
"MaxFatalRegistrationErrors": 1,
"MaxReRegistrationAttempts": 0,
"LocalQoSTimeoutMTSeconds": 6,
"AdditionalHeaders": {
"INVITE[wifi,911]": [
"P-Emergency-Info: IEEE-802.11b;i-wlan-node-id=${DEVICE_REF_ID}",
"Supported: geolocation"
]
},
"EarlyMediaNeedsHeader": true,
"InviteErrorResponsesToTriggerCSFB": "",
"strictCallFlows": true,
"SendEmergencyLocationUpdates": true,
"TriggerCSFBOnLocalQoSTimeoutMO": false,
"StartLocalQosTimerOnSessionProgress": true,
"UseBase64ForMultipartSMS": false,
"VerstatFeatureCapability": "Enabled",
"AddLocationToEmergencySMS": true,
"SipTimers": {
"D": 32000,
"InviteResponseTimeout": 0,
"AckRetransmitTimer": 32000,
"AckReceiveTimeout": 32000,
"J": 32000,
"F": 32000,
"B": 32000,
"H": 32000
},
"LocalQoSTimeoutMOSeconds": 10,
"RegisterOnServiceUpdate": false,
"RegistrationPolicy": "ATT",
"RingingTimerSeconds": 45,
"CSFBOnAccessBarred": true,
"AdditionalContactParams": {
"INVITE,INVITE:*": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting"
},
"NetworkTerminationRetryIntervalSeconds": 1,
"KillRegistrationOnHandoverTimeout": false,
"TriggerCSFBOnLocalQoSTimeoutMT": false,
"OutgoingDomain": "1",
"EmergencyCallBackModeExpirationSeconds": 20,
"Preconditions": "Supported",
"IgnoreNonCompliantSupportedHeaders": false,
"WaitForRingingTimerMOSeconds": 0,
"ResetCallIdOnInitialRegistration": true,
"PIDFConfidence": 90,
"UseCIDUrlInPIDF": true,
"AccessNetworkRefreshDelayMilliseconds": 30000,
"AlwaysAddGeolocationForEmergencyCalls": true,
"PIDFGeoPrivShape": "ellipsoid",
"AccessNetworkRefreshMethod": "INVITE",
"IgnoreOverridesForWPSCalls": true,
"UseTupleInPIDF": true,
"EnableRingbackAudioForTextCalls": true,
"WaitForRingingTimerMTSeconds": 8,
"Allow3DPIDFInMessages": true,
"IgnoreFromHeaderForSenderName": false,
"ClearRegistrationCallIdOnDeinitialization": true,
"UseT3402ForPdpBackoff": false,
"AlwaysSendSessionProgress": true,
"PerCallQoSIndications": false,
"AddLocationInInviteResponses": "180,183",
"IPSecSegmentOffset": 210,
"ReRegisterOnInternalRequestTimeout": true,
"WifiAccessInfo": "000000000000",
"RequirePreconditionsWhenMandatory": false,
"SupportPEarlyMediaHeader": true,
"UseIPSec": true,
"RegistrationRetryIntervals": "0",
"AccessBarringType": "ACB",
"UseFakeSAsForDeregistration": true,
"ussdEnabled": true,
"IncomingCallEndReasons": {
"NotFound": {
"StatusCode": 404,
"TerminationEvent": "RemoteHangup"
},
"TemporarilyUnavailable": {
"StatusCode": 480,
"TerminationEvent": "RemoteHangup"
}
},
"ReRegisterOnErrorCodes": "REGISTER:403,480,500,503,504;INVITE:60,403,408,504",
"LocationForShortCodeCalls": "CIVIC",
"CountryOfOriginationFormat": "BOTH",
"EmergencyPreferredIdentity": "IMEI",
"RingbackTimerSeconds": 180,
"AllowResponsesOverDifferentTransport": false,
"WaitForRingingTimerWPSSeconds": 8,
"SendPreferredServiceInInvite": true
},
"LocalShortCodeNumbers": [
"211",
"311",
"411",
"511",
"611",
"711",
"811"
],
"CallTransfer": {
"CallTransferOnlyIfIMSRegistered": true,
"CallTransferRequestUri": "pull-VoLTE-active@one.att.net",
"CallTransferDialNumber": "######",
"CallTransferToUri": "pull-SP-active@one.att.net"
},
"ConferenceCalling": {
"TreatAllNotificationsAsPartial": true,
"conferenceServer": "sip:n-way_voice@one.att.net"
},
"AllowHandoverWithoutIMSVoiceService": true,
"SMS": {
"enableInNonVoLTEMode": false,
"SMSBundleToVoice": false,
"allowCSFBInVolteMode": false
},
"XCAP": {
"IgnoreSimFileCFIS": true,
"SupportsCLIR": false,
"DisableOnNetworkError": false,
"UnsolicitedRequestDelay": 0,
"ForbiddenHttpErrorCodes": "",
"ContentType": "application/xcap-el+xml",
"ImpuRank": "tel:MDN,tel:other,MDN@domain,MDN@other,IMSI@domain,IMSI@3gpp,IMSI@other,sip:other@domain,sip:other",
"supported": true
},
"Media": {
"InactivityTimerRTPSeconds": 20,
"HoldHeartbeatIntervalSeconds": 5,
"RTCPIntervalSeconds": 5,
"RTTBandwidthSpecifierRTCPPercentage": 10,
"EnableBandwidthSpecifiers": true,
"AudioCodecs": {
"127": {
"ch-aw-recv": "2",
"br": "5.9-13.2",
"SampleRate": 16000,
"EncodingName": "EVS",
"bw": "nb-swb",
"max-red": "0"
}
},
"AlwaysPrintSDPFormatInfo": true,
"EnableRemoteRTCPDeactivation": true,
"AllowIPv6UnicastAddress": true,
"InactivityTimerRTCPSeconds": 20,
"TTYRelayNumber": "711",
"EVSHardBwLimit": "nb-swb",
"StopLocalRingbackToneOn181": false,
"UseRestrictiveDirectionWhenCreatingAnswer": false,
"DTMFInterDigitIntervalMilliseconds": 540,
"RTTBandwidthSpecifierASValue": 4,
"EnableIncomingDTMF": true,
"IncludeSDPMaxRed": true
},
"SIM": {
"USIMFallbackSupport": false
},
"Voice": {
"IgnoreCallerIDBlockingForEmergency": true,
"EnableVolteByDefault": true,
"E911OverITechSupported": false,
"E911OverCSIfNoIMSReg": true,
"CheckIMSPrefForEmergency": false,
"CellularE911SearchTimeout": 5,
"endNonEmergencyCalls": true,
"tLte911Timer": 0
}
} |
| aTechSettings | absent | {"FatalActivationErrors":[8192],"ChildSAs":{"FirstChild":{"ChildProposals":[{"EncryptionAlgorithm":["AES-128"],"Lifetime":80000,"IntegrityAlgorithm":["SHA2-256"]}],"InstallPolicies":true,"ReplayWindowSize":12}},"iRatPolicies":{"PreferredTechnology":"cellular","PreferredTechnologyRoaming":"wifi"},"Ex… {
"FatalActivationErrors": [
8192
],
"ChildSAs": {
"FirstChild": {
"ChildProposals": [
{
"EncryptionAlgorithm": [
"AES-128"
],
"Lifetime": 80000,
"IntegrityAlgorithm": [
"SHA2-256"
]
}
],
"InstallPolicies": true,
"ReplayWindowSize": 12
}
},
"iRatPolicies": {
"PreferredTechnology": "cellular",
"PreferredTechnologyRoaming": "wifi"
},
"ExtraConfigurationAttributeRequestv6": [
{
"Identifier": 16386,
"Name": "AssignedPCSCFIPv6",
"Type": "IPv6Address"
}
],
"SupportContextSwitchOver": true,
"WiFiCallingControlsAlliWLanServices": true,
"AllowHandOverFromDataModeList": [
"LTE"
],
"WifiCallingAllowedInRoaming": true,
"PdnErrorsToBlockHandover": "54",
"5wiServiceMask": 3,
"IKE": {
"Proposals": [
{
"EncryptionAlgorithm": "AES-128",
"IntegrityAlgorithm": "SHA2-256",
"DHGroup": 14,
"AuthenticationMethod": "None",
"Lifetime": 80000,
"EAPMethod": "EAP-AKA",
"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
},
"AllowRoamingHandover": false,
"ExtraConfigurationAttributeRequestv4": [
{
"Identifier": 16384,
"Name": "AssignedPCSCFIPv4",
"Type": "IPv4Address"
}
],
"SetHandOverIPv6Prefix": true,
"TechPolicies": [
{
"policy": "cellData=false",
"serviceMask": 1081351
},
{
"policy": "true",
"serviceMask": 131072
},
{
"policy": "true",
"serviceMask": 262144
}
],
"IPSecMTU": 1280,
"SupportCallHandover": true
} |
ATT_MVNO_US
iOS 27.2 beta 1–2 image · build 72.7.1 beta 
iOS 26.5 – 26.6.2 image · build 70.0