{
  "Media": {
    "IncludeSDPModeChangeCapability": true,
    "EnableBandwidthSpecifiers": true
  },
  "Signaling": {
    "ValidateSipMessageRecipient": false,
    "AdditionalContactParams": {
      "REGISTER,INVITE,INVITE:*[primary]": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting;+g.3gpp.ps2cs-srvcc-orig-pre-alerting"
    },
    "InviteErrorResponsesToTriggerCSFB": "3XX,4XX,5XX,6XX",
    "EarlyMediaNeedsHeader": true,
    "UseIPSec": true,
    "SupportPEarlyMediaHeader": true
  },
  "XCAP": {
    "supported": false
  },
  "Voice": {
    "EnableVolteByDefault": true
  }
}