# Recommendation U.75 (11/1988): Automatic called telex answerback check

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26985471](https://www.wikidata.org/wiki/Q26985471)  
**Source**: https://4ort.xyz/entity/recommendation-u-75-11-1988-automatic-called-telex-answerback-check