The following platforms have passed the VoiceXML Forum Platform Certification Program for VoiceXML 2.0.
| VoiceXML version: | W3C VoiceXML 2.0 Recommendation March 16, 2004 |
| Test Suite versions: |
VoiceXML Forum Test Suite v1.0, September 07, 2004 |
| Vendor | CTR | Product Name | Product Version | Operating System | Telephony interface | ASR engine | TTS engine | Date Certified |
| Aspect Software | CTR | Aspect Customer-SelfService | 7.2 | Windows 2003 | T1 (remote testing via PSTN) | SpeechWorks OSR3.0.9 | SpeechWorks Speechify 3.0.1 | June 2006 |
| Aumtech, Inc. | CTR | Aumtech CGATE VoiceXML Server | 3.0 | Red Hat Enterprise Linux AS 3.0 | SIP (remote testing via PSTN with VoIP gateway) | Microsoft Speech Server | Microsoft Speech Server | February 2008 |
| Avaya Business Communications | CTR | Avaya Voice Portal | 3 | Red Hat Enterprise Linux ES relaease 3 | SIP | SpeechWorks OSR3.0 | SpeechWorks Speechify 3.0.1 | July 2006 |
| Avaya Business Communications | CTR | Avaya Interactive Response | 1.3 | Solaris | T1 Robbed-bit |
SpeechWorks OSR3.0 | SpeechWorks Speechify 3.0.1 | May 2005 |
| Cisco Systems | CTR | IOS GW | 12.4T | IOS | remote testing via PSTN (ISDN) | Loquendo ASR 6.7 | Loquendo TTS 6.5 | February 2007 |
| Edify Corporation | CTR | Edify Voice Interaction Platform (EVIP) | 9.0 | Windows 2000 SP4 | T1 | Nuance 8.5 | ScanSoft RealSpeak 3.5.1 | December 2004 |
| Envox Worldwide | CTR | Envox Communications Development Platform | 6.1 | Windows 2000 SP4 | T1 ISDN 4ESS | SpeechWorks OSR 3.0.3 | SpeechWorks Speechify 3.0.4 | June 2005 |
| CTR | Genesys Voice Platform (GVP) | 7.0 | Windows 2000 SP4 |
ISDN PRI |
ScanSoft OSR 2.0.9 |
ScanSoft Speechify 3.0.2 |
April 2005 | |
| Holly Connects | CTR | Holly Voice Platform | V4.1 | Solaris 9 | remote testing via PSTN (SIP with VoIP gateway) |
Nuance 8.5 | ScanSoft Speechify 3.0.1 | July 2005 |
| Intervoice | CTR | Omvia Media Server | 2.5 | Windows 2003 |
ISDN PRI |
Scansoft OSR 3.0.4 |
Scansoft Real Speak 4.0.6 |
October 2005 |
| Loquendo | CTR | VoxNauta Platform | 7.0 |
Windows 2000 SP4
|
SIP
|
Loquendo ASR 6.7
|
Loquendo TTS 6.5
|
December 2005
|
| Microsoft Corporation | CTR | Microsoft Speech Server 2007 | 2.61019 | Windows 2003 | SIP (remote testing via PSTN with VoIP gateway) | Microsoft ASR | Microsoft TTS | December 2006 |
| Nortel | CTR | MPS | 3.0 | Windows Server 2003 | T1 | ScanSoft OSR 3 | ScanSoft RealSpeak 4 | July 2005 |
| Nuance Communications | CTR | Nuance Voice Platform (NVP) | NVP-2004_07_28 | Windows 2000 SP4 | SIP | Nuance 8.5 | Nuance Vocalizer 4.0 | September 2004 |
| Prosodie * | CTR | Prosodie VXML-NG Browser | 2.0 | Linux | ISDN | Nuance Recognizer 9.0 | Acapella 7.0 | January 2012 |
| Plum Voice | CTR | Plum Voice Platform | 3.0.0 | Linux | ISDN | Nuance OSR 3.0 | AT&T NaturalVoices™ 1.4 | March 2007 |
| SandCherry, Inc. | CTR | SandCherry Voice Platform | 3.2 | Redhat Enterprise Linux 4 | SIP | Nuance OSR 3.0.11 | Nuance Speechify 3.0.5 | December 2006 |
| Telesoft Technologies | CTR | OKEFORD Media Platform | 14.2 | Enterprise Linux | E1 (remote testing via PSTN) | Nuance Recognizer 9.0 | Nuance Realspeak 4.5 | May 2008 |
| TellMe Networks, A Microsoft Subsidiary | CTR | Tellme Networks VoiceXML Browser | 1.0 | Solaris | VoIP (remote testing via PSTN through VoIP gateway) | Microsoft Speech Engine | March 2008 | |
| Vail Systems, Inc - ICT Group | CTR | Vail-ICT VoiceXML Interpreter | 2.0 | Solaris | SIP (remote testing via PSTN with VoIP gateway) | Nuance 8.5 | Nuance 4.0 | June 2006 |
| Verizon Business | CTR | VerizonBusiness Hosted IVR | 8.4 | Redhat Enterprise ES release 3 | Clear Channel T1 (remote testing via PSTN | Nuance OSR 3.0.11 |
Nuance RealSpeak 4.0.12 |
March 2008 |
| Vocalocity, Inc. | CTR | Vocalocity OEM Browser | 2.5 | Windows Server 2003 SP1 | SIP | Scansoft OSR 2.0.6 |
Scansoft Speechify 3.0.4 |
July 2005 |
| CTR | VoiceGenie Platform | 6 | Linux | T1 Robbed-bit |
ScanSoft OSR 3.0.0 | ScanSoft Speechify 3.0.3 | September 2004 | |
| Voxeo | CTR | Voxeo Prophecy | 2006 | Windows 2003 | SIP with PRI VoIP gateway | Voxeo Prophecy Speech Recognizer 6.5 | Voxeo Prophecy Speech Synthesizer 6.5 | March 2006 |
| CTR | Voxeo VoiceCenter | 6.0 | Windows 2000 SP4 |
SIP (remote testing via PSTN with PRI VoIP gateway) |
Nuance 8.0 ASR |
ScanSoft Speechify 2.0 |
April 2005 | |
| CTR | Voxpilot Open Media Platform | v1.0 | Windows 2000 SP4 | remote testing via PSTN |
Nuance v7.0.4
|
ScanSoft RealSpeak 3.0.3 | September 2004 | |
| CTR | West OpenVXI Browser | 2.5.0 | Linux | ISDN, remote testing via PSTN | Scansoft OSR 3.0.4 | Speechify 3.0.1 | July 2005 |
*Tested in 2011 or beyond under updated test criteria from original 2.0 certification test criteria.