# Recommendation T.503 (11/1988): A document application profile for the interchange of Group 4 facsimile documents

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26894589](https://www.wikidata.org/wiki/Q26894589)  
**Source**: https://4ort.xyz/entity/recommendation-t-503-11-1988-a-document-application-profile-for-the-interchange-of-group-4-facsimile-documents