sip client for mobile

SIP programmer required to develop SIP client for voice and video calling for symbian, android, mobilin, iphone and windows mobile. We have complete SIP/RTP desktop client stack implementation in c# based on codeproject sample which would need to be enhanced. Implement audio/video codecs to support audio and video calling ...the stack is a complete SIP and RTP stack client that supports calling. But, does not support voice and video yet. So, following codecs need to be supported: Audio: gsm Video: h.264 Requirements: - Address book - audio/ video call - login/ register - Audio/ video must be synchronized and real-time without delay. Deliverables: Working solution with source code. 2 people be able to do video call with each other having phones with either of the mentioned OS. Open source can be used if need be with pre-approvals. Let me know if 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 mobile 6.1, symbian, android, iphone, c/c++/c#, [login to view URL] 2008, sip, gsm, h.264