{
  "Signaling": {
    "AdditionalContactParams": {
      "REGISTER,INVITE,INVITE:*": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting;+g.3gpp.ps2cs-srvcc-orig-pre-alerting"
    },
    "PreconditionUpdateDelayTimerMilliseconds": "10000",
    "TriggerCSFBOnSDPError": true,
    "AlwaysAddSipInstance": true,
    "SupportPEarlyMediaHeader": true,
    "RegistrationRetryIntervals": "70",
    "UseCIDUrlInPIDF": true,
    "UseFakeSAsForDeregistration": true,
    "EarlyMediaNeedsHeader": true,
    "ReRegisterOnErrorCodes": "403",
    "LocationForShortCodeCalls": "BOTH",
    "UseOutgoingSipUri": true,
    "AdditionalHeaders": {
      "INVITE,INVITE:*": "Feature-Caps: *;+g.3gpp.srvcc-alerting"
    },
    "InviteErrorResponsesToTriggerCSFB": "3XX,5XX,600,604,606",
    "AlwaysSendSessionProgress": true,
    "UseDummyImeiCheckDigit": false,
    "SendResumeInviteAsSendRecv": false,
    "RingbackTimerSeconds": 90,
    "CountryOfOriginationFormat": "BOTH",
    "IncomingCallEndReasons": {
      "NoAnswerFromUser": {
        "TerminationEvent": "RemoteHangup",
        "StatusCode": 408
      }
    },
    "EnableCellularNetworkInfo": true,
    "IncompleteRegistrationThrottlingIntervalSeconds": 70,
    "Preconditions": "Supported",
    "RingingTimerSeconds": 90,
    "UseIPSec": true
  },
  "ConferenceCalling": {
    "conferenceServer": "sip:mmtel@conf-factory.ims.mnc${MNC}.mcc${MCC}.3gppnetwork.org",
    "TreatAllNotificationsAsPartial": true,
    "AlwaysSubscribeToConferenceEvents": true
  },
  "AllowHandoverWithoutIMSVoiceService": true,
  "LocalShortCodeNumbers": [
    "122",
    "123",
    "180"
  ],
  "Media": {
    "SuppressOctetAlignAttributeForBECodecs": false,
    "PreferredAMRWBMode": 8,
    "InactivityTimerRTCPSeconds": 25,
    "InactivityTimerRTPSeconds": 30,
    "RingbackTone": "CEPT",
    "IncludeSDPModeChangeCapability": true
  },
  "SMS": {
    "allowCSFBInVolteMode": true
  },
  "Voice": {
    "EnableVolteByDefault": true
  }
}