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VOIP Feature in IOS and Android Application

We have a mobile app ( IOS and Android ) and we need to implement a feature of VOIP Calling for customers . The workflow will be :

The User of the App will call a customer via VOIP server in UK to a phone number .

The app will call a API with date /time / details of the call for logging purposes. (success/fail)

The apps are developed in native code both for IOS and Android.

We need also recommendations for VOIP services / libs. If you implemented this in a previous app would be a great advantage.

The payment for the app will be done on delivery / after testing.

Thank you

Beceriler: Android, iPhone, Mobile App Development

Daha fazlasını görün: app to app calling api, twilio voip phone, how to develop voip application for android, android voip app source code, android voip api, twilio ios app, twilio voip client, android voip tutorial, ios android application, ios android application development, cms ios android application, app voip ios android, checklist application ios android, voip ios android, ios android map application

İşveren Hakkında:
( 0 değerlendirme ) Cluj Napoca, Romania

Proje NO: #14835884

77 freelancer bu iş için ortalamada 737$ teklif veriyor

aistechnolabs

Greetings, I am very thankful for this opportunity. It’s really exciting that we have below similar kind of expertise and work experience: Similar Work: http://aistechnolabs.us/voice/voicedial/voicedial.php Daha fazlası

in 20 gün içinde721$ USD
(46 Değerlendirme)
8.6
sphinxsolution

(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. Daha fazlası

in 30 gün içinde1500$ USD
(78 Değerlendirme)
8.4
HugeWave

-----------------Hello----------------- ***Let's built successful project together*** https://www.freelancer.com/u/HugeWave.html This is my freelancer.com profile and please check my profile .. As you see , Daha fazlası

in 10 gün içinde555$ USD
(64 Değerlendirme)
7.9
EliteSolution8

Let's go together for your project. How are you today? I am a full stack developer who has good experience in mobile and web development I am here to implement your idea and am working with my team. I will a Daha fazlası

in 10 gün içinde555$ USD
(35 Değerlendirme)
7.7
ominfowave

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. Warm Regards, Om Infowave Relevant Skills and Experience D Daha fazlası

in 10 gün içinde750$ USD
(198 Değerlendirme)
7.9
davincci199412

Dear Client. I have been working with VOIP mobile apps (native and hybrid) for many years. https://itunes.apple.com/us/app/vaxphone-softphone-voice-changer/id887426417?mt=8 https://itunes.apple.com/us/app/portgo/id4 Daha fazlası

in 10 gün içinde600$ USD
(48 Değerlendirme)
7.7
SevenStarInfo

Hello, We want to discuss 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 iOS and Daha fazlası

in 10 gün içinde750$ USD
(69 Değerlendirme)
7.8
Yknox

Dear, I am Smile Song, Mobile developer in China. I've just read your job posting and I’m very interested. I'm a certificated freelancer with almost 600 good reviews from clients. Relevant Skills and Experience I have Daha fazlası

in 10 gün içinde721$ USD
(260 Değerlendirme)
7.7
ghulammurtaza204

we already working on the voip based apps, i will give you working demo if you are interested to work with us. Relevant Skills and Experience We are providing design and development solutions In the following areas iP Daha fazlası

in 10 gün içinde944$ USD
(51 Değerlendirme)
7.7
technorizen

Hello, I have 6 years of experienced on mobile application (Android & iphone ) and App admimn with development web services where admin can manage the app from backend ,I have developed the VoIp call App , Dating Ap Daha fazlası

in 10 gün içinde555$ USD
(121 Değerlendirme)
8.1
Beautistar

Dear sir. I am a professional mobile app & web developer with 7+ years rich experience. I also have been certificated mobile & web development skill tests in here freelancer.com I have developed many applications Daha fazlası

in 10 gün içinde555$ USD
(71 Değerlendirme)
7.5
jinthreek89

How are you? I am a senior developer with extensive experience in building high quality Mobile apps, Games & Web. When I work on a project, I strive for excellence and 100% client satisfaction. Having an idea Daha fazlası

in 10 gün içinde555$ USD
(35 Değerlendirme)
7.4
esolzsales

Hello, We have read your project requirements and we have understood that you want to build an android & iPhone/IOS app. If you want then we can have a 1-1 discussion on FL chat. kindly let us know. Relevant Skills Daha fazlası

in 79 gün içinde10976$ USD
(11 Değerlendirme)
7.1
JoomlaVogue

https://drive.google.com/open?id=0B4F8rJdlH_TMXzJIb3B4eTlVUWc https://drive.google.com/open?id=0B4F8rJdlH_TMTzdjNEtaeHFYWUU Relevant Skills and Experience https://drive.google.com/open?id=0B4F8rJdlH_TMXzJIb3B4eTlVUWc Daha fazlası

in 10 gün içinde277$ USD
(69 Değerlendirme)
7.6
seekdeveloper

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, Daha fazlası

in 10 gün içinde833$ USD
(12 Değerlendirme)
7.3
in 10 gün içinde555$ USD
(45 Değerlendirme)
6.7
in 10 gün içinde500$ USD
(46 Değerlendirme)
6.9
atech0

Hi There, I have 6+ years of experience in mobile app development in native/cross for Android and iOS platform. I do expertise in Java, Objective C, Phonegap, Swift, X Code, Eclipse IDE and almost all the versio Daha fazlası

in 10 gün içinde1000$ USD
(7 Değerlendirme)
6.4
searchtechnow

Hi, We are a team of experience Android/iOS developers and believe in quality and timely output. we can do these features if you have previous app code. Relevant Skills and Experience Skills: Java, Swift, Objective Daha fazlası

in 10 gün içinde555$ USD
(25 Değerlendirme)
6.6
masterlancer999

Hello, how are you? I am a talented app developer with full experiences I've just read your job posting and I'm very interested. I have experienced knowledge in every part of mobile technology such as Ionic, Xamarin Daha fazlası

in 10 gün içinde555$ USD
(33 Değerlendirme)
6.4