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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

Kemahiran: Android, iPhone, Mobile App Development

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Tentang Majikan:
( 0 ulasan ) Cluj Napoca, Romania

ID Projek: #14835884

73 pekerja bebas membida secara purata $752 untuk pekerjaan ini

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: [login to view URL] Lagi

$721 USD dalam 20 hari
(54 Ulasan)
8.6
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 , Lagi

$555 USD dalam 10 hari
(82 Ulasan)
8.2
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. Lagi

$1500 USD dalam 30 hari
(79 Ulasan)
8.4
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 Lagi

$750 USD dalam 10 hari
(203 Ulasan)
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 Lagi

$555 USD dalam 10 hari
(40 Ulasan)
7.9
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 Lagi

$721 USD dalam 10 hari
(335 Ulasan)
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 Lagi

$555 USD dalam 10 hari
(92 Ulasan)
7.8
davincci199412

Dear Client. I have been working with VOIP mobile apps (native and hybrid) for many years. [login to view URL] [login to view URL] Lagi

$600 USD dalam 10 hari
(50 Ulasan)
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 Lagi

$944 USD dalam 10 hari
(52 Ulasan)
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 Lagi

$750 USD dalam 10 hari
(70 Ulasan)
7.8
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 Lagi

$555 USD dalam 10 hari
(41 Ulasan)
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 Lagi

$555 USD dalam 10 hari
(127 Ulasan)
8.2
$555 USD dalam 10 hari
(80 Ulasan)
7.2
JoomlaVogue

[login to view URL] [login to view URL] Relevant Skills and Experience [login to view URL] Lagi

$277 USD dalam 10 hari
(70 Ulasan)
7.6
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 Lagi

$10976 USD dalam 79 hari
(12 Ulasan)
7.3
$500 USD dalam 10 hari
(68 Ulasan)
7.2
UnitedWebSpace

Hi, Nice to meet you. My name is Bryan. Please check my profile https://www.freelancer.com/u/UnitedWebSpace.html As a mobile app developer, I have a great experience for 6+ years in mobile app development. I am Lagi

$555 USD dalam 10 hari
(26 Ulasan)
6.9
Yugene90

*** Hello, You have an idea and I'll make it. *** I am a senior iPhone/Android app developer and will serve you the best work. I had worked as a senior mobile/web developer in FTD Company for over 8 years and have de Lagi

$500 USD dalam 10 hari
(31 Ulasan)
6.8
EliZhang221

*** iPhone | iPad | Android | FireBase | Swift3 | ObjectC | NodeJs | Ruby *** I have these skills under my belt. - this is my previous doctor and patience reminder app [login to view URL] - this is my Voi Lagi

$300 USD dalam 10 hari
(29 Ulasan)
7.0
ITWhiz4U

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 Lagi

$555 USD dalam 10 hari
(46 Ulasan)
7.0