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We need to develop a SIP to Viber gateway. The gateway should be able to pass voice calls incoming over SIP and forward them through Viber to complete the call to the called party number. The development platform/operating system is not important. The project should be completed either by using the Linux/Windows Viber executables, or by using the Android /Symbian/ Windows Phone mobile versions of the application, no matters on the version number. The implementation should return the correct call error codes to the SIP backend, i.e. CALL SUCCESS, BUSY, UNAVAILABLE, etc. For a successful project we'll select the one, triggering successfully continuous SIP/Viber calls.

Evner: Android, Mobile App Development

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Om arbejdsgiveren:
( 0 bedømmelser ) Indonesia

Projekt ID: #13928999

40 freelancers are bidding on average $1191 for this job


(From the makers of Vivino & Dah Makan) Hi, I hope you are doing well, We are 7 year young rapidly growing Mobile App Development Company based out of New Jersey, USA, Gold coast, Australia & Pune, India. Flere

$1500 USD in 30 dage
(72 bedømmelser)

Dear sir. I am a professional mobile app developer and have full experience for 6 years. I read your project description carefully and I can understand what you want. So now I can start your project and until Flere

$1250 USD in 20 dage
(85 bedømmelser)

Hi, I am a professional who is working with not only Android native app development but also web service programming with frontend and backend as well, having 8+ years experiences. I have read your requirements, and Flere

$1250 USD in 20 dage
(156 bedømmelser)

CLEAN AND FAST SENIOR MOBILE DEVELOPER !!! Hello, Dear. I'm developing Mobile app to the order of clients for 6+ years. I'm a senior developer which has rich experience in developm Flere

$1500 USD in 20 dage
(85 bedømmelser)

Dear Sir, Trust us we can do this project as we had done similar project of our clients. We want to work with you and build a healthy longterm relationship so please contact us and discuss for this project before fi Flere

$1500 USD in 40 dage
(208 bedømmelser)

How are you? I had read your job description carefully. I believe that I can do this job well. Because I have follow skill and experience to build your product. - Object C and Swift - Jave and javascript Flere

$1250 USD in 20 dage
(62 bedømmelser)

Hello ! We want to discuss about your project as we have experience in it. What Differentiates us from the other freelancers : # Experience of more than 5 years in Unity 3D, Xcode, CoCoa 2d, Phonegap and major Flere

$1500 USD in 20 dage
(61 bedømmelser)

Hello. Please look at my freelancer profile. I have developed many mobile apps and backend for 7 years so far. I have java, objective-c, swift and c# skills for mob Flere

$1250 USD in 20 dage
(43 bedømmelser)

Hello, client. My number one priority is customer service and satisfaction! I can develop iOS and Android apps, server backend api and admin panel in PHP,MySQL and Website for the app. I have developed man Flere

$800 USD in 20 dage
(53 bedømmelser)

Hello I am very pleasure to apply on your job . As you can see my profile & portfolio below, I have 7 years of experiences in mobile application developments. So I'm familiar in many sorts of risks and if you f Flere

$1250 USD in 20 dage
(31 bedømmelser)

Hello Sir, First of all, we would like to tell you how we will initialize the project with you Please have a look at our portfolio for Mobile App and Unity Game based projects: [url removed, login to view] Flere

$833 USD in 20 dage
(69 bedømmelser)

Hello, I Am full time available on work. I have viewed your requirements and found our self the most appropriate for the project Please share all the requirement details across to me So i can go through it and st Flere

$1100 USD in 20 dage
(68 bedømmelser)

Hello, I have read your project description carefully. I have a wealth of experience on the voip video call field I am using MjSip, libvpx library too. Of course I can complete your project perfectly and smartly. Flere

$750 USD in 20 dage
(30 bedømmelser)

Hello Sir, Hope you are fine there. We are having good experience with Mobile App projects and the reason we came across here to give the best output to your project with supreme quality. We have developed Flere

$780 USD in 15 dage
(37 bedømmelser)

Hi, I'm a talented developer for iOS, Android and have 8 years full time development experience. I have already developed a great number of various applications, namely on-demand services, location-based apps, Flere

$1546 USD in 15 dage
(11 bedømmelser)

Hello, It's a pleasure to let you know that I've Completed and Delivered similar project before. All I need to work on customization part if we can proceed towards more discussion. I have gone through your project de Flere

$1443 USD in 20 dage
(13 bedømmelser)
$1250 USD in 20 dage
(18 bedømmelser)

How are you? I have enough experience on Mobile App development. I read your description carefully and understand your requirements fully. I have rich experience on SIP project development. I am 100% sure i can sat Flere

$1000 USD in 20 dage
(33 bedømmelser)

1.) With my Skills, I can provide website , custom solution , e-commerce solution , android application , ios application , desktop application, games, SEO with one year support . 2.) I am available on all days to Flere

$1250 USD in 33 dage
(25 bedømmelser)

Hi, Gone through your project description and looking forward for more discussion. I offer mobile app solutions for small to big size business house. We build native Android and iPhone apps. You can check Flere

$1250 USD in 20 dage
(25 bedømmelser)