{
  "code": "33.040.35",
  "fieldcode": "33",
  "description": "Telephone networks",
  "groupcode": "040",
  "subgroupcode": "35",
  "@context": "https://isoics.org/ics/ns/subgroup.jsonld",
  "descriptionFull": "Telecommunications. Audio and video engineering. Telecommunication systems. Telephone networks.",
  "notes": [
    {
      "text": "Including Public Switched Telephone Networks (PSTN), Private Telecommunication Networks (PTN) and Private Integrated Service Networks (PISN)"
    }
  ]
}