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I6NET provides a VoiceXML browser for Asterisk :

Products

VoiceXML Browser for Asterisk VXI*

The VXI* VoiceXML browser for Asterisk® gives operators and solution providers the ability to rapidly develop and deploy innovative voice and video applications via IP, PSTN, and 3G-324M networks. VXI* is fully compliant with the W3C's VoiceXML 2.0+ specification and is integrated with automatic speech recognition (ASR) and text-to-speech (TTS) software to enable advanced voice and video solutions, and real-time video calling applications. VXI* can be installed in common hardware configurations, providing a highly scalable base system to meet all customers' business and technical VoiceXML requirements.

VXI* VoiceXML interpreter works directly with the Asterisk® PBX software supported by Digium®. Not only can users of the open source PBX run VoiceXML applications in the same server, they can now offer these powerful, scalable IVR / IVVR solutions at an affordable cost.

Written in C, Linux Operating System, License Commercial

Key features and benefits

• VoiceXML V2.0/V2.1 compliant
• CCXML replaced by Call Control functions of Asterisk
• Base on OpenVXI voice browser template
• Application for Asterisk PBX (app_vxml)
• VoiceXML accounts managment configuration (for hosting services)
• Support plugging objects with the VoiceXML tag, SDK with API available
• Fax support (send and receive)
• Video silence parameter with VoiceXML syntax
• Text-to-Speech (TTS) connector included
• Automatic-Speech-Recognition (ASR) connector included
• Text-to-Video (TTV) with HTTP connector (option)
• Voice-Silent Detection (VSD)
• MRCP v1 and v2 thru uniMRCP for TTS and ASR.

Xtras* Software Extensions

Xtras* are extended modules for VXI* and Asterisk that VoiceXML is able to control. These extensions provide special features and tools to get or post information thru Asterisk with the interpreter. All these packages can be deployed in a same VXI* server according to each system's configuration requirements.

• Xtras* Outbound Dialer/API (Answering machine detection and full call reports)
• Xtras* Call Recorder MP4 (h264 and h263)
• Xtras* MRCP Client (uniMRCP with some improvments for VoiceXML integration)
• Xtras* Flash/RTMP Server Channel (Allows call from WebBrowser using FlashPlayer)
• Xtras* Video IP/3G and Tools

Written in C, Linux Operating System

Text-to-Speech engines supported:

• Flite - free (TTS) from CMU Speech Group
• Loquendo (TTS)
• Ivona (TTS)
• eSpeak MBROLA - free (TTS)
• Voxygen (TTS)
• Cepstral (TTS)
• Verbio (TTS)
• Nuance Scansoft (TTS)
• Acapela (TTS)
• VoiceInteraction (TTS)
• Yantra Software (TTS)
• GoogleTTS
• Festival (Asterisk application)
• Universal HTTP connector for any TTS engines
• Universal MRCP connector for any TTS engines (uniMRCP)

Automatic-Speech-Recognition engines supported:

• Lumenvox Speech Engine (ASR)
• Verbio Speech Server (ASR)
• VoiceInteraction Speech Engine (ASR)
• Vestec Speech Engine (ASR)
• Loquendo Speech (ASR-MRCP)
• Nuance Speech (ASR-MRCP)
• PocketSphinx (SpeechToText)
• universal MRCP v1 and v2 (ASR) (uniMRCP modified with extra features)

Asterisk requirements:

• Asterisk 1.4 / 1.6 / 1. ...