{
            "timestampSecUtc" : NumberLong(1552810557),
            "dateTimeFormatted" : "17.03.19 08:15",
            "author" : "tech.ivoice.calls.taskproc.service.DialingFailedTransitionService",
            "event" : "dialing failed, failure caused not by user actions",
            "parameters" : {
                "timestamp" : NumberLong(1552810557112),
                "sipCode" : 484,
                "fullSipSystemResponse" : "-ERR INVALID_GATEWAY",
                "callUuid" : "951dee46-0216-4df3-82a0-ecf02fe5fdf7",
                "callTaskId" : "5c8e02390748c90007a313f2"
            }
        }
    ],
    "_class" : "tech.ivoice.common.model.calls.CallTask",
    "failComment" : "Не удалось дозвониться, код SIP 484"