{
  "Signaling": {
    "InviteErrorResponsesToTriggerCSFB": "3XX,4XX,5XX,6XX",
    "SecurityAgreementAlgs": [],
    "SupportPEarlyMediaHeader": true,
    "RingbackTimerSeconds": 90,
    "RingingTimerSeconds": "90",
    "EarlyMediaNeedsHeader": true,
    "AlwaysSendSessionProgress": true,
    "AdditionalContactParams": {
      "REGISTER,INVITE,INVITE:*": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting;+g.3gpp.ps2cs-srvcc-orig-pre-alerting"
    },
    "ContactUser": "IMSI",
    "AlwaysUnsubscribeFromRegEvents": false,
    "UseOutgoingSipUri": true,
    "MinSessionExpiresSeconds": "900"
  },
  "ConferenceCalling": {
    "conferenceServer": "sip:mmtel@conf-factory.ims.mnc017.mcc716.3gppnetwork.org",
    "AlwaysSubscribeToConferenceEvents": true
  },
  "Media": {
    "IncludeSDPModeChangeCapability": true
  },
  "SIM": {
    "IgnoreISIM": true
  },
  "Voice": {
    "EnableVolteByDefault": true
  }
}