# business telephone system

> multiline telephone system typically used in business environments

**Wikidata**: [Q204896](https://www.wikidata.org/wiki/Q204896)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Business_telephone_system)  
**Source**: https://4ort.xyz/entity/business-telephone-system


## References

1. Integrated Authority File
2. Nuovo soggettario
3. National Library of Israel Names and Subjects Authority File
4. KBpedia