# Recommendation T.390 (11/1988): Teletex requirements for interworking with the telex service

> recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26931541](https://www.wikidata.org/wiki/Q26931541)  
**Source**: https://4ort.xyz/entity/recommendation-t-390-11-1988-teletex-requirements-for-interworking-with-the-telex-service