ISO IEC TR 18057-2004 PDF

Full title and description

ISO/IEC TR 18057:2004 — Information technology — Telecommunications and information exchange between systems — Using ECMA-323 (CSTA XML) in a Voice Browser Environment. This technical report illustrates how the ECMA-323 CSTA XML protocol can be used for call control and eventing in voice browser environments (examples include SALT- or CCXML-enabled browsers) that provide an XML read/write messaging interface to a CSTA-conformant communications platform.

Abstract

This Technical Report explains concepts and usage patterns for applying ECMA-323 (CSTA XML) within voice browser environments. It shows message flows, CSTA profiles, programming examples (including SALT/CSTA XML and CCXML/CSTA XML), and highlights call-control features and asynchronous event handling required when a voice browser interfaces to a CSTA service boundary. The material is intended to help implementers integrate voice browsers and telephony platforms using XML-based call-control messaging.

General information

• Status: Published (Technical Report; International Standard stage confirmed).
• Publication date: 12 February 2004 (confirmed on 23 May 2025 following review).
• Publisher: ISO/IEC (ISO/IEC JTC 1, Subcommittee SC 6 — Telecommunications and information exchange between systems).
• ICS / categories: 35.100.10 (Telecommunications and information exchange between systems).
• Edition / version: Edition 1.0 (2004).
• Number of pages: 30.

Scope

Shows how ECMA-323 (CSTA XML) can be applied in voice browser environments that expose an XML-based read/write messaging interface to a communication platform (a CSTA service boundary). The report covers integration patterns for supporting asynchronous CSTA events, mapping CSTA call-control operations into a voice-browser context, illustrative programming examples (SALT and CCXML), and recommended CSTA profile usage for typical voice-browser call-control scenarios.

Key topics and requirements

• Overview of ECMA-323 (CSTA XML) and its role for call control and eventing.
• Definition and examples of CSTA profiles suitable for voice browsers.
• Design patterns for XML-based read/write messaging between a voice browser and CSTA platforms.
• Asynchronous event handling and message sequencing requirements.
• SALT/CSTA XML and CCXML/CSTA XML illustrative programming examples.
• Mapping of common call-control features (establish, hold, transfer, conference, release) to CSTA XML messages.
• Implementation considerations for interoperability and conformance with CSTA service boundaries.

Typical use and users

Intended for developers and architects of voice-browser applications and platforms, contact-centre and IVR integrators, telecommunications product vendors implementing CSTA interfaces, system integrators connecting voice browsers to telephony servers, and standards/QA teams creating conformance tests and integration guidelines.

Related standards

Related documents and families include ECMA-323 (CSTA XML), ECMA and ISO/IEC standards for CSTA services and phases, voice-application technologies such as SALT and CCXML, and other ISO/IEC JTC 1/SC 6 telecommunications standards. Implementers should consult the current ECMA-323 specification and accompanying CSTA service descriptions when using this report.

Keywords

ECMA-323, CSTA, CSTA XML, Voice Browser, SALT, CCXML, call control, service boundary, telephony integration, IVR, contact center.

FAQ

Q: What is this standard?

A: ISO/IEC TR 18057:2004 is a technical report that explains how to use the ECMA-323 (CSTA XML) protocol to integrate voice browsers with CSTA-conformant telephony platforms.

Q: What does it cover?

A: It covers conceptual guidance, CSTA profile recommendations, message-flow and event-handling patterns, and illustrative programming examples (including SALT/CSTA and CCXML/CSTA) to help implementers perform XML-based call control and eventing in voice browser environments.

Q: Who typically uses it?

A: Voice application developers, telephony platform vendors, system integrators, contact-centre implementers, and standards teams working on CSTA/voice-browser interoperability.

Q: Is it current or superseded?

A: The document was published on 12 February 2004 (Edition 1.0) and has been maintained through periodic ISO review; it was confirmed following review in 2025. National bodies may record different national statuses or revisions; consult your national standards body for country-specific status.

Q: Is it part of a series?

A: Yes. It is a Technical Report in the ISO/IEC 18000–18099 range and is part of the broader family of CSTA/ECMA-323 guidance and telecom-related ISO/IEC standards maintained by JTC 1/SC 6.

Q: What are the key keywords?

A: ECMA-323, CSTA, CSTA XML, voice browser, SALT, CCXML, call control, telephony integration.