c++ voip coder to implement Tone Detection for SIP calls(repost)

**Use packet sniffing techniques like wireshark etc to build tone detection component dll for SIP calls for c# SIP client.** the module needs to be reasonably accurate more than 80% for answering machines, fax, human and busy tones. My preferred language of coding would be c# but c++ is OK too. It has to be external component dll and needs to allow interactivity with 3rd party c# applications. The project is really simple and few days task for somebody who knows what he/she is doing. This is just beginning of a really long term relationship. Let me know of any queries. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform windows, voip, c++, c#, VS 2008, .NET 3.5, asterisk, ip pbx, sip