{
  "@context": {
    "@vocab": "https://schema.org/",
    "cisco": "https://developer.cisco.com/ns/expressway#",
    "uc": "https://www.itu.int/rec/T-REC-H.323/ns#",
    "sip": "https://www.ietf.org/rfc/rfc3261#",
    "snmp": "https://www.ietf.org/rfc/rfc3411#",
    "ice": "https://www.ietf.org/rfc/rfc8445#",
    "turn": "https://www.ietf.org/rfc/rfc8656#",
    "tls": "https://www.ietf.org/rfc/rfc8446#",
    "dns": "https://www.ietf.org/rfc/rfc1035#",
    "ntp": "https://www.ietf.org/rfc/rfc5905#",

    "ExpresswaySystem": {
      "@id": "cisco:ExpresswaySystem",
      "@type": "@id",
      "description": "A Cisco Expressway session border controller node providing firewall traversal and collaboration services"
    },
    "SystemName": {
      "@id": "schema:name",
      "@type": "xsd:string",
      "description": "Name assigned to the Expressway node"
    },
    "SoftwareVersion": {
      "@id": "schema:softwareVersion",
      "@type": "xsd:string",
      "description": "Currently installed software version"
    },
    "SerialNumber": {
      "@id": "schema:serialNumber",
      "@type": "xsd:string",
      "description": "Hardware or VM serial number"
    },
    "IPv4Address": {
      "@id": "cisco:ipv4Address",
      "@type": "xsd:string",
      "description": "IPv4 network address of the Expressway"
    },
    "IPv6Address": {
      "@id": "cisco:ipv6Address",
      "@type": "xsd:string",
      "description": "IPv6 network address of the Expressway"
    },
    "Uptime": {
      "@id": "cisco:uptime",
      "@type": "xsd:string",
      "description": "Time elapsed since last restart"
    },

    "Zone": {
      "@id": "cisco:Zone",
      "@type": "@id",
      "description": "A zone defining a connection to an external system for call routing and firewall traversal"
    },
    "NeighborZone": {
      "@id": "cisco:NeighborZone",
      "@type": "@id",
      "description": "A zone connecting to a neighboring system such as another Expressway or Unified CM"
    },
    "TraversalServerZone": {
      "@id": "cisco:TraversalServerZone",
      "@type": "@id",
      "description": "A zone providing firewall traversal services on Expressway-E"
    },
    "TraversalClientZone": {
      "@id": "cisco:TraversalClientZone",
      "@type": "@id",
      "description": "A zone connecting to a traversal server across a firewall from Expressway-C"
    },
    "DNSZone": {
      "@id": "cisco:DNSZone",
      "@type": "@id",
      "description": "A zone enabling endpoint discovery through DNS lookups"
    },
    "ENUMZone": {
      "@id": "cisco:ENUMZone",
      "@type": "@id",
      "description": "A zone enabling endpoint discovery through ENUM DNS lookups"
    },
    "ZoneName": {
      "@id": "schema:name",
      "@type": "xsd:string"
    },
    "HopCount": {
      "@id": "cisco:hopCount",
      "@type": "xsd:integer",
      "description": "Maximum forwarding iterations for a search request"
    },
    "PeerAddress": {
      "@id": "cisco:peerAddress",
      "@type": "xsd:string",
      "description": "Address of a connected peer system"
    },
    "MediaEncryptionMode": {
      "@id": "cisco:mediaEncryptionMode",
      "@type": "xsd:string",
      "description": "Media encryption enforcement mode for calls"
    },

    "SearchRule": {
      "@id": "cisco:SearchRule",
      "@type": "@id",
      "description": "A rule defining how search requests are routed to target zones based on alias pattern matching"
    },
    "AliasPatternType": {
      "@id": "cisco:aliasPatternType",
      "@type": "xsd:string",
      "description": "Pattern matching type: Prefix, Suffix, Regex, or Exact"
    },
    "AliasPatternString": {
      "@id": "cisco:aliasPatternString",
      "@type": "xsd:string",
      "description": "Pattern to match against destination alias"
    },
    "TargetZone": {
      "@id": "cisco:targetZone",
      "@type": "@id",
      "description": "Zone to which matching requests are forwarded"
    },
    "Priority": {
      "@id": "cisco:priority",
      "@type": "xsd:integer",
      "description": "Evaluation priority where lower numbers are processed first"
    },

    "Transform": {
      "@id": "cisco:Transform",
      "@type": "@id",
      "description": "A pre-search transform that modifies destination aliases before routing"
    },
    "PatternType": {
      "@id": "cisco:patternType",
      "@type": "xsd:string"
    },
    "PatternString": {
      "@id": "cisco:patternString",
      "@type": "xsd:string"
    },
    "ReplaceString": {
      "@id": "cisco:replaceString",
      "@type": "xsd:string"
    },

    "Call": {
      "@id": "cisco:Call",
      "@type": "@id",
      "description": "A voice or video call traversing the Expressway"
    },
    "SourceAlias": {
      "@id": "cisco:sourceAlias",
      "@type": "xsd:string",
      "description": "Alias of the calling endpoint"
    },
    "DestinationAlias": {
      "@id": "cisco:destinationAlias",
      "@type": "xsd:string",
      "description": "Alias of the called endpoint"
    },
    "CallType": {
      "@id": "cisco:callType",
      "@type": "xsd:string",
      "description": "Protocol type of the call: SIP, H.323, or Interworked"
    },
    "StartTime": {
      "@id": "schema:startDate",
      "@type": "xsd:dateTime"
    },
    "EndTime": {
      "@id": "schema:endDate",
      "@type": "xsd:dateTime"
    },
    "Duration": {
      "@id": "schema:duration",
      "@type": "xsd:integer"
    },

    "Registration": {
      "@id": "cisco:Registration",
      "@type": "@id",
      "description": "A device registration with the Expressway"
    },
    "DeviceType": {
      "@id": "cisco:deviceType",
      "@type": "xsd:string",
      "description": "Type or model of the registered device"
    },
    "ContactAddress": {
      "@id": "cisco:contactAddress",
      "@type": "xsd:string",
      "description": "Network contact address including IP and port"
    },
    "Subzone": {
      "@id": "cisco:subzone",
      "@type": "xsd:string",
      "description": "Subzone assignment for the registered device"
    },

    "Alarm": {
      "@id": "cisco:Alarm",
      "@type": "@id",
      "description": "A system alarm indicating a condition requiring attention"
    },
    "AlarmId": {
      "@id": "schema:identifier",
      "@type": "xsd:string"
    },
    "Severity": {
      "@id": "cisco:severity",
      "@type": "xsd:string",
      "description": "Alarm severity: Critical, Warning, or Information"
    },
    "Title": {
      "@id": "schema:name",
      "@type": "xsd:string"
    },
    "Description": {
      "@id": "schema:description",
      "@type": "xsd:string"
    },
    "TimeRaised": {
      "@id": "schema:dateCreated",
      "@type": "xsd:dateTime"
    },

    "DnsServer": {
      "@id": "cisco:DnsServer",
      "@type": "@id",
      "description": "A DNS server configured on the Expressway"
    },
    "NtpServer": {
      "@id": "cisco:NtpServer",
      "@type": "@id",
      "description": "An NTP server configured for time synchronization"
    },
    "Address": {
      "@id": "cisco:address",
      "@type": "xsd:string",
      "description": "IP address or hostname"
    },

    "SmartLicense": {
      "@id": "cisco:SmartLicense",
      "@type": "@id",
      "description": "Cisco Smart Licensing status and entitlement information"
    },
    "RegistrationStatus": {
      "@id": "cisco:registrationStatus",
      "@type": "xsd:string"
    },
    "AuthorizationStatus": {
      "@id": "cisco:authorizationStatus",
      "@type": "xsd:string"
    },

    "TurnRelay": {
      "@id": "cisco:TurnRelay",
      "@type": "@id",
      "description": "An active TURN relay allocation for media traversal"
    },

    "SIPConfiguration": {
      "@id": "cisco:SIPConfiguration",
      "@type": "@id",
      "description": "SIP protocol configuration settings"
    },
    "SIPMode": {
      "@id": "sip:sipMode",
      "@type": "xsd:string"
    },
    "H323Mode": {
      "@id": "uc:h323Mode",
      "@type": "xsd:string"
    },

    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "schema": "https://schema.org/"
  }
}