# ISO/IEC 18056:2010 — Withdrawn and superseded ISO standards For ISO/IEC 18056:2010, item title is Information technology — Telecommunications and information exchange between systems — XML protocol for Computer Supported Telecommunications Applications (CSTA) Phase III; status code is 9599; successor is ISO/IEC 18056:2012; withdrawn / published date is 2010-05-12, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 18056:2010 _(verified: appears in the quote below)_ - **Item title:** Information technology — Telecommunications and information exchange between systems — XML protocol for Computer Supported Telecommunications Applications (CSTA) Phase III _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 18056:2012 - **Withdrawn / published date:** 2010-05-12 _(verified: appears in the quote below)_ ## What the source says > 54757,IS,,ISO/IEC 18056:2010,Information technology — Telecommunications and information exchange between systems — XML protocol for Computer Supported Telecommunications Applications (CSTA) Phase III,Technologies de l'information — Téléinformatique — Protocole XML pour applications en télécommunications supportées par ordinateur (CSTA) en phase III,2010-05-12,4,['35.100.30'],ISO/IEC JTC 1/SC 6,9599,[45588],[61210],['en'],494,"

ISO/IEC 18056:2010 specifies an XML protocol for the services defined in ISO/IEC 18051. It provides an alternative protocol to the ASN.1-based protocol specified in ISO/IEC 18052. In addition to the CSTA-specific protocol details, it describes the concepts underlyin ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).