# ISO/IEC 18056:2005 — Withdrawn and superseded ISO standards For ISO/IEC 18056:2005, item title is Information technology — Telecommunications and information exchange between systems — XML Protocol for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Supported Telecommunications Applications (CSTA) Phase III; status code is 9599; successor is ISO/IEC 18056:2007; withdrawn / published date is 2005-07-11, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 18056:2005 _(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quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 18056:2007 - **Withdrawn / published date:** 2005-07-11 _(verified: appears in the quote below)_ ## What the source says > 41246,IS,,ISO/IEC 18056:2005,Information technology — Telecommunications and information exchange between systems — XML Protocol for Computer Supported Telecommunications Applications (CSTA) Phase III,Technologies de l'information — Télécommunications et échange d'information entre systèmes — Protocole XML pour applications en télécommunications supportées par ordinateur (CSTA) en phase III,2005-07-11,2,['35.100.30'],ISO/IEC JTC 1/SC 6,9599,[38395],[45588],['en'],497,"

ISO/IEC 18056:2005 specifies an XML protocol for the services described in ECMA-269, Services for Computer Supported Telecommunications Applications (CSTA) Phase III. It provides an alternative protocol to the ASN.1 b ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).