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A VoIP softphone communicator required for Windows OS AND Mobile Cell Phones (symbian, windows mobile...) using java or J2EE, which will be locked down to our calling servers.
Mobile Java softphone required similar to www.fring.com which will work in the same way as the softphone features.
Basic features overview :
1. Fully featured SIP or IAX windows client
2. Multi Codec Voice (G711 ,G723 ,G729 )
3. Support for T.38 Fax over IP
4. Send & receive SMS
5. must support DTMF dialing during a call.
6. Instant Messaging (integration with msn contacts , yahoo contacts ,skype required as www.fring.com software)
Service provider need to provide detail features specification to bid the project and good communications to discuss to determine the direction of it.
Experience in developed similar product with sample reference preferred.
All source code must include.
This will be an on-going project that will require future cutting-edge upgrades.
Make your own bids even if higher than budget but preferably please keep within budget.