# ISO/IEC 15051:1997 — Withdrawn and superseded ISO standards For ISO/IEC 15051:1997, item title is Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Recall supplementary service; status code is 9599; successor is ISO/IEC 15051:2003; withdrawn / published date is 1997-05-15, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 15051:1997 _(verified: appears in the quote below)_ - **Item title:** Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Recall supplementary service _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 15051:2003 - **Withdrawn / published date:** 1997-05-15 _(verified: appears in the quote below)_ ## What the source says > 26331,IS,,ISO/IEC 15051:1997,"Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Recall supplementary service","Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Spécification, modèle fonctionnel et flux d'informations — Service supplémentaire de rappel",1997-05-15,1,['33.040.35'],ISO/IEC JTC 1/SC 6,9599,,[36850],['en'],13, ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).