We want to develop a VOIP / SIP Dialer for Symbian Mobile Phones which can work in blocked areas.
It will use SRTP / TLS / TCP protocol with SIPS.
The dialer must be able to work in all type of environments blocked / open on all type of data networks GPRS 3G, Wifi etc.
The Dialer will support and will offer to select or auto select codec G711, G729, G723.1.
The dialer will be able to work on all type Soft Switches / proxy servers.
The dialer will support maximum number of Nokia handsets Symbian^3, 3rd Edition, 5th Edition etc.
Developer will also develop server side but it is optional.
The Developer will also provide complete source code of the project.