1)   Voicent VoiceXML Gateway 6.0.1
VoiceXML Gateway VOIP PSTN TAPI development SDK for interactive telephony apps. High level W3C development platform. Supports text-to-speech, voice recognition, DTMF tones for both inbound, outbound apps. Works with VOIP, Skype, and voice modem.

 2)   Voicent Predictive Dialer 6.2.1
Predictive dialer and semi automatic dialer for telemarketing campaign. Predictive dialing supports VOIP through Skype and remote agents. Automatic dialing can play audio messages, transfer calls, and record conversations, all by the press of a key.