Asterisk Voice Changer & DTMF Counter

We require the modification of one existing application, and the creation of a new one: 1) MODIFICATION OF EXISTING VOICE CHANGER APPLICATION: Take the provided voice altering application for Asterisk and perform the following tasks: 1) Make this application compile & run on Asterisk 1.6 2) Add a feature to this application to allow realtime recording of the conversation to a .wav file with the following arguments: a) the full path of the .wav file to record to b) true/false: Whether or not to record the ALTERED voices vs. the real ones. This application must support multiple simultaneous calls and be bug-free. Successful field testing under production conditions (appx. 1 week) will be required before full payment is released. Application must allow for the standard Asterisk "Dial" command to work, not have it's own dialer.. the reason is because we require the time-limiting function to work.