SIP/RTP Visual Basic .NET Developer

We are looking for SIP/RTP VB.NET Developer that familiar with PBX, IVR, SIP and RTP. Client/Server application have to be made, where server side is SIP Registrar/Proxy mixed with accounting and billing system. Clients will connect to it, establish phone call, they will b connected to another client or IVR will respond if there is no funds left to place a call. Same way, if during the call, funds went lower than allowed balance, call will be terminated.

Please vote if you have already done similar projects and you can show any demos, or at least have clear 100% understanding of what we need.

Visual [url removed, login to view] knowledge is the must.

Skills: .NET, Audio Services, Visual Basic

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About the Employer:
( 0 reviews ) Bucharest, Romania

Project ID: #222377

5 freelancers are bidding on average $724 for this job


Plz check my PMB

$750 USD in 20 days
(62 Reviews)

please check pmb.

$700 USD in 30 days
(21 Reviews)

Hi, Greetings. I can work on this kind of project. I already have telephone device ,TAPI application experience. Please reply for discussion. Regards, John

$700 USD in 30 days
(1 Review)

Please refer the PMB

$720 USD in 25 days
(1 Review)

PLZ Check PM for further detail.

$750 USD in 30 days
(0 Reviews)