{
  "Signaling": {
    "IgnoreRegNotificationContactExpires": true,
    "AdditionalContactParams": {
      "REGISTER,INVITE,INVITE:*": "+g.3gpp.mid-call;+g.3gpp.srvcc-alerting;+g.3gpp.ps2cs-srvcc-orig-pre-alerting"
    },
    "DefaultAuthAlgorithm": "AKAv1-MD5",
    "TriggerCSFBOnSDPError": true,
    "RegistrationRetryIntervals": "30,30,60,120,480",
    "SupportPEarlyMediaHeader": true,
    "UseFakeSAsForDeregistration": true,
    "UseOutgoingSipUri": true,
    "EarlyMediaNeedsHeader": true,
    "ReRegisterOnErrorCodes": "REGISTER:403,480,500,503,504",
    "WaitForRingingTimerMOSeconds": 21,
    "AdditionalHeaders": {
      "INVITE,INVITE:*": "Feature-Caps: *;+g.3gpp.srvcc-alerting"
    },
    "AlwaysUnsubscribeFromRegEvents": false,
    "SubscriptionTerminatedMeansRegistrationTerminated": true,
    "InviteErrorResponsesToTriggerCSFB": "3XX,5XX,6XX",
    "DropRegistrationOnSRVCC": true,
    "MaxUdpMessageSize": 5000,
    "strictCallFlows": true,
    "RingbackTimerSeconds": 90,
    "AlwaysAddPrivacyHeader": true,
    "WaitForRingingTimerMTSeconds": 21,
    "IncomingCallEndReasons": {
      "NoAnswerFromUser": {
        "TerminationEvent": "RemoteHangup",
        "ReasonHeaderCause": 19,
        "StatusCode": 480,
        "Protocol": "Q.850"
      },
      "TemporarilyUnavailable": {
        "TerminationEvent": "RemoteHangup",
        "StatusCode": 480
      }
    },
    "MaxReRegistrationAttempts": 5,
    "RingingTimerSeconds": "90",
    "UseIPSec": true,
    "RegistrationExpirationSeconds": "7200",
    "RegSubscriptionExpirationSeconds": "7200",
    "AllowRemoteHoldForUnconfirmedCalls": true
  },
  "ConferenceCalling": {
    "conferenceServer": "sip:conference@ims.mnc003.mcc419.3gppnetwork.org",
    "SendConferenceSubscribeInNewDialog": true,
    "TreatAllNotificationsAsPartial": true,
    "AlwaysSubscribeToConferenceEvents": true
  },
  "SMS": {
    "allowCSFBInVolteMode": true,
    "SupportedDomains": {
      "GSM": false,
      "UMTS": false,
      "LTE": true
    }
  },
  "Media": {
    "EnableBandwidthSpecifiers": true,
    "InactivityTimerRTPSeconds": 15,
    "RingbackTone": "CEPT",
    "IncludeSDPModeChangeCapability": true
  }
}