Secure VoIP Client APP (for mobile)


We are in a need of a secure and encrypted VoIP client 1st for Android, 2nd for iOS.

The VoIP client may be using Open Source libraries, and has to be based upon ZRTP (up to) SRTP protocols. The protocols and technology can be used from open source libraries.

Other details which has to be customized are - guidelines;

- Sandbox application

- 256 AES encryption @ login

- APP user registration

- Hidden directories required

- Add contacts only XMPP / Email

- VoIP communication using XMPP

- Design customizations

- Disable features

- Etc.

Extended project description is available.

We advice this project to a freelancer who is / was contributing on; Ring, Redphone / Signal, CSipSimple, Linphone, etc.

Deadline two weeks + Budget $500 - $800

技能: 安卓, iPhone, Java, Mobile App Development, Objective C

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( 137个评论 ) Den Bosch, Spain

项目ID: #15410849

29 威客就此工作平均出价 $642


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$555 USD 在10天内

Dear sir. Nice to meet you. I have read your job post in carefully and understood everything what you want. I have developed 30+ apps & published them app stores in successfully for 6+ years. As you have seen, 更多

$555 USD 在10天内

iPhone, iPad, Android, FireBase, Swift3.0, 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 Voice Message Ap 更多

$500 USD 在10天内

Please have a look at our portfolio for Mobile App and Unity Game based projects: Relevant Skills and Experience [login to view URL] [login to view URL] 更多

$555 USD 在10天内

good day, Please provide me full job description with wireframes or rough sketches of the app so that i will tell you exact time and cost for this to be developed. Relevant Skills and Experience I've more than 6+ year 更多

$555 USD 在10天内

My name is LiMing. I am coding for over 10 years and have many experiences in this field. I read your description carefully and have some questions related to project development. Please contact to me and let's disc 更多

$555 USD 在10天内

Hello, Great to hear from you that you are looking for Secure VoIP Client APP. we have already developed chat application using ECC, PGP and AES and moving another part calling functionality ZRTP. Relevant Skills an 更多

$888 USD 在20天内

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, 更多

$777 USD 在10天内

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

$555 USD 在10天内
$555 USD 在10天内

Hi dear employer! How are you? I read your requirements carefully and understand what you want. I can complete your project perfectly with high quality codes. Hope to work with you. thanks Relevant Skills and Experien 更多

$500 USD 在10天内

I am a mobile developer by profession and expert. I just read the description regarding the project and interested in working for your project. I have developed many apps for 7+ years and uploaded it on app store an 更多

$555 USD 在10天内

I have 7+ years in mobile phone - Android - iphone application development with very good experience. Relevant Skills and Experience I am good in Android, iPhone, Java, Mobile App Development, Objective C Proposed Mi 更多

$500 USD 在7天内

Hello. I can do it quickly at low price. I am a full stack iOS and android mobile app developer , and then I have rich experience in developing mobile apps for more than 6 years. So far, I have developed many succe 更多

$1000 USD 在10天内

Our portfolio links: [login to view URL] Relevant Skills and Experience Our portfolio links: [login to view URL] Proposed 更多

$555 USD 在10天内

Hi We are interested in working with you on required VOIP client. We have understood your requirement, we do have prior experience with the same. Let's connect to discuss. Relevant Skills and Experience As a reference 更多

$666 USD 在10天内

Hello,i read your [login to view URL] already build the IOS and Android Voip/SIP/Soft Phone Versions with [login to view URL] have a team of developers with 7 year Experienced for Mobile(IOS & ANDROID) Apps & Games. Relevant Skills an 更多

$777 USD 在20天内

Hi, On behalf of CS Infotech having experience of 7+ [login to view URL] have a team of experienced developers & designers who are capable of completing this project on time with quality. Relevant Skills and Experience We have g 更多

$700 USD 在30天内
$800 USD 在20天内

I am an IITK graduate and I have 9 years of experience in software development. I have 100% completion rate and I have finished all the projects with the highest level of customer satisfaction. Relevant Skills and Exp 更多

$555 USD 在10天内