# Recommendation F.201 (11/1980): Interworking between teletex service and telex service - General principles

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26931536](https://www.wikidata.org/wiki/Q26931536)  
**Source**: https://4ort.xyz/entity/recommendation-f-201-11-1980-interworking-between-teletex-service-and-telex-service-general-principles