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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

Taidot: Android, iPhone, Mobile App Development

Näytä lisää: 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

About the Employer:
( 0 reviews ) Cluj Napoca, Romania

Projektin tunnus: #14835884

77 freelanceria on tarjonnut keskimäärin 737 $ tähän työhön

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 Lisää

721 $ USD 20 päivässä
(46 arvostelua)
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. Lisää

1500 $ USD 30 päivässä
(78 arvostelua)
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 , Lisää

555 $ USD 10 päivässä
(64 arvostelua)
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 Lisää

555 $ USD 10 päivässä
(35 arvostelua)
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 Lisää

750 $ USD 10 päivässä
(198 arvostelua)
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 Lisää

600 $ USD 10 päivässä
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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 Lisää

750 $ USD 10 päivässä
(69 arvostelua)
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 Lisää

721 $ USD 10 päivässä
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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 Lisää

944 $ USD 10 päivässä
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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 Lisää

555 $ USD 10 päivässä
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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 Lisää

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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 Lisää

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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 Lisää

10976 $ USD 79 päivässä
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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 Lisää

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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, Lisää

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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 Lisää

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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 Lisää

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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 Lisää

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