# ISO/IEC 11572:1997/Amd 2:1997 — Withdrawn and superseded ISO standards For ISO/IEC 11572:1997/Amd 2:1997, item title is Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network (PISN) — Circuit Mode Bearer Services — Inter-Exchange Signalling Procedures and Protocol — Amendment 2; status code is 9599; successor is ISO/IEC 11572:2000; withdrawn / published date is 1997-06-12, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 11572:1997/Amd 2:1997 _(verified: appears in the quote below)_ - **Item title:** Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network (PISN) — Circuit Mode Bearer Services — Inter-Exchange Signalling Procedures and Protocol — Amendment 2 _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 11572:2000 - **Withdrawn / published date:** 1997-06-12 _(verified: appears in the quote below)_ ## What the source says > 27242,IS,Amd,ISO/IEC 11572:1997/Amd 2:1997,Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network (PISN) — Circuit Mode Bearer Services — Inter-Exchange Signalling Procedures and Protocol — Amendment 2,Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services (PISN) — Services porteurs en mode circuit — Procédures et protocole de signalisation d'interéchange — Amendement 2,1997-06-12,2,['35.110'],ISO/IEC JTC 1/SC 6,9599,,[31613],['en'],5, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).