# telephone exchange

> telecommunications system used in public switched telephone networks or in large enterprises

**Wikidata**: [Q256132](https://www.wikidata.org/wiki/Q256132)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Telephone_exchange)  
**Source**: https://4ort.xyz/entity/telephone-exchange


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=12250)
2. Freebase Data Dumps. 2013
3. BBC Things
4. YSO-Wikidata mapping project
5. National Library of Israel
6. KBpedia
7. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)