{
  "Signaling": {
    "AdditionalContactParams": {
      "REGISTER,INVITE,INVITE:*": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting;+g.3gpp.ps2cs-srvcc-orig-pre-alerting"
    },
    "DefaultAuthAlgorithm": "",
    "TriggerCSFBOnSDPError": false,
    "AlwaysAddSipInstance": false,
    "UseFakeSAsForDeregistration": false,
    "SupportPEarlyMediaHeader": false,
    "UseCIDUrlInPIDF": false,
    "ussdEnabled": false,
    "EarlyMediaNeedsHeader": true,
    "SipTimers": {
      "InviteResponseTimeout": 5000
    },
    "strictCallFlows": false,
    "InviteErrorResponsesToTriggerCSFB": "3XX,4XX,5XX,6XX",
    "AlwaysSendSessionProgress": true,
    "maxUDPpacketsize": 1500,
    "RingbackTimerSeconds": 40,
    "WaitForRingingTimerMTSeconds": 25,
    "SendPreferredServiceInInvite": false,
    "CountryOfOriginationFormat": "BOTH",
    "Preconditions": "Supported",
    "UseIPSec": false,
    "RingingTimerSeconds": 40
  },
  "ConferenceCalling": {
    "SendReferToPeer": false,
    "conferenceServer": "sip:mmtel@conf-factory.ims.mnc103.mcc732.3gppnetwork.org",
    "SendConferenceSubscribeInNewDialog": false,
    "AlwaysSubscribeToConferenceEvents": false
  },
  "SMS": {
    "allowCSFBInVolteMode": true,
    "SMSBundleToVoice": false
  },
  "Media": {
    "RTCPIntervalSeconds": 5,
    "PreferredAMRNBMode": 7,
    "EnableBandwidthSpecifiers": false,
    "PreferredAMRWBMode": 8,
    "InactivityTimerRTCPSeconds": 10,
    "InactivityTimerRTPSeconds": 10,
    "RingbackTone": "CEPT",
    "IncludeSDPMaxRed": false,
    "IncludeSDPModeChangeCapability": true
  },
  "Voice": {
    "DialAsEmergencyOverIMSForUndetectedEmergency": false,
    "EnableVolteByDefault": true,
    "E911OverCSIfNoIMSReg": true,
    "E911OverIMSSupported": false,
    "endNonEmergencyCalls": false
  }
}