1)   Voicent IVR Studio 1.0
IVR Studio for easy development of interactive voice response system. Quick development and deployment of music on hold, voicemail, auto attendant, voicemail to email, and other inbound call applications

 2)   CT Developer Studio 2.0
Integrate computer with telephony quickly and easily. Develop and run IVR applications on your Windows PC. IVR software development should not be difficult! CT Developer Studio helps you develop and host automated call handling systems.