Looking for mobile developers to develop SIP/VOIP client

Looking for mobile developers to develop SIP/VOIP client

Closed - This job posting has been filled.

Job Description

Hi all,

I am looking for mobile developers to develop SIP/VOIP client application for iPhone, android, windows phone and blackberry.
budget for each application is $800.
We have SIP server ready just need to develop mobile clients.

Send me your previous related work. No general application in portfolio.
To make sure you read this job description please write "hello world!" at top of your application.

Thanks.

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Skills: voip, android-development, blackberry