IVR with SFX and E1 Cards

I am in need of an IVR with SFX and E1 cards that have an interactive voice response and use both speech recognition and text-to-speech to process messages.The E1 cards will be Ethernet based. I am looking for developers who can create a fully functioning IVR system that provides a user interface with an automated greeting and menu options, as well as personalized instructions for customers. The IVR should include features such as call forwarding, automated call recording, call transfer, and the ability to customize speaking voices for different calls and caller circumstances. an ideal candidate will have a strong knowledge of the technologies associated with an IVR system, including E1 cards, integrated systems, signal and speech recognition and text-to-speech. They should also be familiar with programming languages such as C and Java.