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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

39 freelancere byder i gennemsnit $1196 på dette job


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
(0 bedømmelser)

(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
(73 bedømmelser)

Hello Client, I read your requirements you are looking for an app to be developed. I have sound experience in Android and iPhone application development,designing and testing. My team have been developed many apps Flere

$1000 USD in 20 dage
(71 bedømmelser)

Hi my name is James and I am developer based in London. Your project caught my eye and I would love an opportunity to discuss it further with you. Feel free to read my reviews and check my portfolio here at digiwhizz.c Flere

$1250 USD in 20 dage
(1 bedømmelse)

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
(87 bedømmelser)

Hello Sir, I understood that you like to develop an Android Application. I am pleased to inform you that we have immense skills and experience of over 6 years in app development and we built several large & compl Flere

$888 USD in 20 dage
(24 bedømmelser)

Dear Client. Thanks for considering our bid for your project. We are a top rated digital agency, specialised in Websites, Web and Mobile apps and Internet Marketing. We have reviewed the job description carefu Flere

$1159 USD in 20 dage
(2 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
(26 bedømmelser)

Hi, Viber SIP, Are you looking to develop it from scratch?? Do you have any requirement Specification? I have Review Your requirement and Studied related Development teams, we had worked for this type of proj Flere

$1500 USD in 35 dage
(8 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: [login to view URL] Flere

$833 USD in 20 dage
(70 bedømmelser)

Hi! I am new here but I have 8 years of experience as a software engineer, with the last 5 of them - as an android developer. I was also the team lead for an app with 50-100mln installs in the last year. Аs I am just Flere

$1250 USD in 20 dage
(2 bedømmelser)

Hello, I am Tahsinul Alam, completed Masters in Software Engineering now working as one of the project manager in Mobile team of Workspace Infotech Ltd, software/Outsourcing firm located in Melbourne, Australia. We Flere

$1250 USD in 20 dage
(3 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 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
(38 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)

Hi, This is from BEAS Consultancy and Services Pvt Ltd ( [login to view URL] ) . BEAS is a million dollar CMMI Level 3 company with ISO Certification. We focus on best industry standards, quality solution Flere

$1170 USD in 26 dage
(0 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
(216 bedømmelser)

Hi, We are Android Developers team from sunny Ukraine! We would like to develop a SIP to Viber gateway the price is $1500 and terms - 25 days We are waiting for you response! Have a great day!

$1499 USD in 25 dage
(10 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)

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
(99 bedømmelser)