# Recommendation X.225 (11/1988): Session protocol specification for Open Systems Interconnection for CCITT applications

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26932300](https://www.wikidata.org/wiki/Q26932300)  
**Source**: https://4ort.xyz/entity/recommendation-x-225-11-1988-session-protocol-specification-for-open-systems-interconnection-for-ccitt-applications