{
  "title": "Telefónica CAMARA Device Structure",
  "description": "Field documentation for the Device identifier object used across Telefónica Open Gateway CAMARA APIs.",
  "type": "object",
  "note": "At least one identifier field must be provided. phoneNumber is most commonly used.",
  "fields": [
    {
      "name": "phoneNumber",
      "type": "string",
      "required": false,
      "description": "E.164 formatted phone number (e.g., +34123456789). Most commonly used identifier.",
      "pattern": "^\\+[1-9][0-9]{4,14}$"
    },
    {
      "name": "networkAccessIdentifier",
      "type": "string",
      "required": false,
      "description": "Network Access Identifier for cellular networks."
    },
    {
      "name": "ipv4Address",
      "type": "object",
      "required": false,
      "description": "Public IPv4 address and optional port for device identification.",
      "fields": [
        {"name": "publicAddress", "type": "string (IPv4)", "description": "Public IPv4 address."},
        {"name": "publicPort", "type": "integer", "description": "Public port (0-65535)."}
      ]
    },
    {
      "name": "ipv6Address",
      "type": "string (IPv6)",
      "required": false,
      "description": "IPv6 address of the device."
    }
  ]
}