I'm looking for customized soft phone, I would like have 4 line sip based soft phone with having options to conference all 4 lines together, Each line i would like to have lock and unlock button so locked line does not hangup by mistake. and when Line 2, 3 or 4 comes they go on hold it self and soon you click ans it conference with line 1, I intend to use this softphone for LIVE Radio Call in program, If you can email me I can provide more info [Removed by [url removed, login to view] Admin]
3 freelancers are bidding on average $450 for this job
i have 5 year good experience in VC++, XML, DirectX, Serial Port, Parallel port, VOIP SIP protocol. i can do better in form of quality. we can do provide small demo of sip protocol.