Recording phone conversation

Hi I need a software that records conversation of phone calls of a call center. I am attaching a doc with some more specifications. I would like it to be done in VB. ## Deliverables Find attached additional specifications. We made a prototype but it doesnt work properly. * * *This broadcast message was sent to all bidders on Tuesday Dec 1, 2009 3:39:46 PM: About the design and code - I want to keep the design,this version was done by me to a customer but some features are not working, so I just need the features working properly. I can send the source code if necessary Source of in-bound sound - It was done by the sound board trough the microphone in connection * * *This broadcast message was sent to all bidders on Thursday Dec 3, 2009 9:14:46 AM: Beside the call recording software needs few features as mentioned on the file attached on my bid request. Just to clarify: 1 ??" Be aware about the “invisible?? option, at the otion operator doesnt know the software is running, and to turn off the pc software must be finished on the task manager 2 ??" Other function that must be review, it is the call identifier (sry, I dont know the name in english ??" this is the number of the phone who is calling to the central), this gunction is working but it is good to check A zip with the code source is beeing attached....it is good to clarify