Design SIP IVR component on SIP server using VXML

This bid is for design of an IVR software NOT a Call flow software What is required is the VXML IVR Controller. We currently have a SIP server which has Voice Mail functions (Media Channel), We want to attach a VXML call flow on this channel that can recognize DTMF Digit pressed. You will receive a code for the SIP media Channel, written in C++, You will need to change this Media Channel CODE to an IVR Controller/IVR Channel based on SIP using VXML call flow ------------------------------------------------------------------ If you do not know SIP or VXML or C++ then please do not bid or communicate