Provides a VXML implementation platform supporting from 4 ports to 240 ports per server. Operates on Windows and natively uses Intel Communications' telephony boards. Integrates with SpeechWorks, Nuance and Phonetic ASR/TTS engines.

HP provides VXML gateways integrated in Open Call Media Platform. Version 2.4 is based on the SpeechWeb browser from Pipebeach which HP acquired in July 2003.

The familly of IBM products related to VXML. Includes VXML server, IDEs, and VXML applications

VXML and CCXML implementations running on Windows.

Omvia Voice Server is a VXML implementation using MRCP to connect to TTS and ASR engines.

A Java-based implementation licensed with sources for integration with various hardware platforms.

Nuance Voice Platform is a VXML 2.0 implementation which also exposes Nuance-proprietary elements through the object tag. Integrates with Nuance vocalizer and recognizer.

The successor of the open-source Elvira open-source VXML implementation. Binaries free for non-commercial use. Runs on Windows and Linux.

An open-source implementation of VXML 2.0 in C hosted by sourceforge. Runs on Windows and Linux

Provides VXML development tools and VXML gateways running on Windows and Solaris.

The ScanSoft's OpenVXI 3.0 interpreter which C++ source is provided for free. Last 3.0 release is from Oct 2003. Not clear whether it is still maintained.

Verascape provides rackeable high-capacity, high-availability VoiceXML speech and DTMF-processing platforms.

Provides VoiceXML platforms running on Windows/Intel platform. Ranges from low-cost sound-card and personal edition to server edition supporting E1s. Uses Microsoft TTS and ASR by default and also integrates with other SAPI providers such as AT&T, NeoSpeech, or Accapela. Visibridge specializes in affordable VoiceXML 2.0 technology for the voice, web and wireless world. Offerings include development tools, turnkey systems and hosting services based on W3C open standards.

A software-based implementation designed for OEM and channel partners. Also integrates a SALT 1.0 implementation

Provides of dialogic-based Linux and Windows VXML platforms. This platform integrates with IBM, SpeechWorks, and LumenVox ASR engines and IBM, SpeechWorks, Rhetorical TTS engines.

The NeXusPoint platform includes VXML and CC interpreters along with the associated speech resources.

The VXML test suite provided by the W3C to demonstrate that the VXML standard can be implemented. This test suite is then used by the VoiceXML Forum as the basis for conformance activities.

The Voxeo VoiceCenter IVR Platform is a VoiceXML and CCXML plaforms that is completed with addons for conference, CTI, and shrink-wrapped applications.

Acquired in 2004 by EurekaSoft, VoxPilot provides VXML platforms.