# Recommendation I.253.2 (11/1988): Call completion supplementary services: Call Hold (HOLD)

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26985394](https://www.wikidata.org/wiki/Q26985394)  
**Source**: https://4ort.xyz/entity/recommendation-i-253-2-11-1988-call-completion-supplementary-services-call-hold-hold-