# Recommendation U.201 (11/1988): Interworking between the teletex service and the telex service

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26985467](https://www.wikidata.org/wiki/Q26985467)  
**Source**: https://4ort.xyz/entity/recommendation-u-201-11-1988-interworking-between-the-teletex-service-and-the-telex-service