{
  "Signaling": {
    "InviteErrorResponsesToTriggerCSFB": "380,403,404,500,501,503,504",
    "DefaultAuthAlgorithm": "AKAv1-MD5",
    "RingingTimerSeconds": 90,
    "UseIPSec": true,
    "Preconditions": "Supported",
    "EarlyMediaNeedsHeader": true,
    "SupportPEarlyMediaHeader": true,
    "AdditionalContactParams": {
      "REGISTER,INVITE,INVITE:*": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting;+g.3gpp.ps2cs-srvcc-orig-pre-alerting"
    },
    "RingbackTimerSeconds": 90,
    "AlwaysSendSessionProgress": false
  },
  "ConferenceCalling": {
    "SendReferToPeer": false,
    "SendConferenceSubscribeInNewDialog": true,
    "conferenceServer": "sip:mmtel@conf-factory.ims.mnc001.mcc633.3gppnetwork.org"
  },
  "IncomingCallEndReasons": {
    "TemporarilyUnavailable": {
      "StatusCode": 480,
      "TerminationEvent": "RemoteHangup"
    }
  },
  "SMS": {
    "allowCSFBInVolteMode": true,
    "SMSBundleToVoice": true,
    "SupportedDomains": {
      "GSM": false,
      "LTE": true,
      "UMTS": false
    }
  },
  "Media": {
    "InactivityTimerRTCPSeconds": 3600
  },
  "XCAP": {
    "supported": false
  },
  "Voice": {
    "EnableVolteByDefault": true
  }
}