The following platforms have passed the VoiceXML Forum Platform Certification Program for VoiceXML 2.1.

VoiceXML version:

Test Suite versions:

VendorCTRProduct NameProduct VersionOperating SystemTelephony InterfaceASR engineTTS engineDate Certified
Advanced Technology SolutionsCTRIVR Center4.0.0.0Windows 2003 Server Standard Edition SP2SIPNuance Recognizer 9.0.6Realspeak 4.5January 7, 2011
GenesysCTRGenesys Voice Portal8.1.1Windows 2003 ServerSIPNuance Recognizer 9.0.7Realspeak 4.5April 19, 2010
Hewlett Packard CorpCTRHP OpenCall Media Platform VoiceXML4.4RedHat Enterprise Linux Server 6.1SIPNuance 9.0RealSpeak 4.5.4November 7, 2012
Holly ConnectsCTRHolly Voice Platform5.1 SP2Red Hat Linux 5.4SIPNuance 9.0.11Vocalizer NSS5.0.8November 22, 2010
Interactive Media SpaCTRIM VXML NG7.2.6Red Hat Enterprise Linux 7.2SIPNuance Recognizer10.2.4Nuance Vocalizer 6.0.3November 29, 16
LoquendoCTRVoxNauta Platform7.1Windows 2003SIPLoquendo ASR 7.8.1Loquendo TTS 7.8.4April 19, 2010
NuanceCTRNuance Voice Platform4.0 SP1Microsoft Windows 2003 Server SP2SIPNuance Recognizer 9.0.12Nuance Vocalizer
April 19, 2010
UnisysCTRUnisys Speech Services Platform12Red Hat Enterprise Linux 5.3SIPNuance Recognizer 9.0.12Nuance Vocalizer 5.0.5October 18, 2012