voip mobile dialer symbian, pocket pc

We are an SIP voip reseller and want a mobile voip dialer that will work with mobile phones supporting symbian, windows mobile5 and 6 or any other compatible operating systems. The dialer should also: -operate on 3G, wifi and if possible GPRS/EDGE -to be compatible with the major SIP platforms -should NOT support public chat options like skype, msn etc -Should have callout and incoming ability such that calls can be made free between phone numbers on the same SIp platform -Be able to copy phone contacts from the phonebook to the dialer for ease of use. - Can only be downloaded from our website such that it can only be activated with a code to be provided by us/our system Example of what we want is a software called fring found at [login to view URL], but we want something we can have control over. Advice me on what is possible and if you may need more information ## 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 symbian OS, windows mobile 5 and 6