C++ VOIP Implementation

**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 Rent A Coder requirements notice: As originally posted, this bid request does not have complete details. Should a dispute arise and this project go into arbitration "as is", the contract's vagueness might cause it to be interpreted against you, even though you were acting in good-faith. So for your protection, if you are interested in this project, please work-out and document the requirements onsite.