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Android VoIP SIP PTT application

€3000-5000 EUR

Cancelled
Posted almost 10 years ago

€3000-5000 EUR

Paid on delivery
We are looking for a experienced, expert Android developer with high knowledge in VoIP. The required application we want to create must provide communications in three styles: - Regular SIP based telephone calls - SIP based PTT mode (sender and receiver in application) - Short message system (based on external XMPP server) Basic application requirements are: - Android Jelly Bean, custom cell phone design, screen size 4,3” with dedicated PTT button - VoIP Calls and PTT must complain SIP standard - VoIP Calls use SRTP - Addidtional directory Services from VoIP Server. Server not part of this work, interface descriptions are given - All communication will be over LTE or WIFI, adaptive codecs must be available - Adaptive GUI design, colored scheme, intuitive usage. Screen design must be included. - All source code work shall be delivered in well documented form. The complete Server Side is being developed using a Open Source IMS implementation. Your bid must include: - Basic project plan – fixed end date - References for similar projects
Project ID: 5940222

About the project

29 proposals
Remote project
Active 10 yrs ago

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29 freelancers are bidding on average €4,452 EUR for this job
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A proposal has not yet been provided
€5,154 EUR in 30 days
4.8 (32 reviews)
7.2
7.2
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Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past projects I have handled and check my reviews for what employers have to say about my work... Can start right now...
€8,000 EUR in 30 days
4.8 (18 reviews)
5.8
5.8
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I can handle this project effectively. I have done related project with zabtalk.com. Kindly contact me and i can send the project plan as private message. Thanks.
€5,000 EUR in 15 days
5.0 (10 reviews)
5.7
5.7
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Hi, We have developed more then 1200+ apps for android & I-phone on the app store So we can surely work on this one as well. We "Hyperlink Infosystem" in India has gained a brand identity as a knowledge economy due to its IT & ITES sector. We "Hyperlink Infosystem" is a medium scale company in india having 112 experience employers working in the company. We provide services in Android,Iphone,Windows 8,Blackberry,Wordpress,magento,php,Yii framework,prestashop,Joomla,Ruby on Rails,Java,c#,Windows .net. Our team is highly Qualified & we follow certain procedures for recruitment so we have the best team. We work on the basis of milestones if the client is interested in working with us we just start with initial 30% & then after designing & programming the other amount is released so you dont have to pay the full amount unless you are not satisfied. We are ready to accept your projects we are passionate about taking up challenging work & then doing it successfully. We always make sure our bids are not generic & we are paying detailed attentions to the project requirements. Our proposals are specific to the needs of clients' mentioning detailed explanation on how we'll get to the solution. We'll provide you the best service whether it is client communication,changes or anything related to the project, You can check our reviews at elance we have a good reputation & hope we can work together.
€5,263 EUR in 30 days
5.0 (11 reviews)
4.3
4.3
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Hi there, I would like to express my interest to your ad post in Freelance. Let it be known that although that I have less working hours here.I am hardworking and industrious. I will guarantee timely delivery of your projects at all times. I have worked as a third party since last a few years for many more companies. Should you need to verify , Please let e know so I can provide you my contact details of my previous superior. I have good home office equipments, including reliable net connection. I can be online 24*7 necessary. Just let me know your requirement and I will pleased to accommodate the needs of your business. I am trustworthy , honest and industrious. I am committed to reaching my clients goals like my own. Please let me know if you are interested to hiring me. I can be reached via Skype and Gtalk. http://www.freelancer.com/u/RayzInfotech2012.html Hope will get opportunity to serve you with our best services,... Best Regards Raman Jain
€3,042 EUR in 25 days
4.2 (8 reviews)
4.3
4.3
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hi i just finised a VoIP SIP PTT in android. i can demo it for you right now. are you there? Thanks
€3,333 EUR in 30 days
5.0 (1 review)
1.7
1.7
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Hello sir. I am a passionate mobile developer with 5+ years rich experience. Before felling in love with mobile apps, I had worked extensively with objectiveC, XCode, Java, C++ to have a strong grip on OOP and design patterns. Worked in domestic/global app development teams during my last 5 years, gained rich experience and knowledge in mobile app development. your project is one of my favorite and high quality. I have implemented VOIP function for Android/iOS already, before. I can provide quick and quality result within your budget. My communication and working time will be flexible to meet your requirement. I will do my best in order to realize your ideas into life.
€3,157 EUR in 15 days
0.0 (0 reviews)
0.0
0.0
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Hi, I can complete this app within 15 to 20 days as I have already completed similar apps for android. I have done more iOS and android apps. I am having 17+ years of experience in software. Specialised in mobile platfors(iOS and android). Please let me know. Thanks
€3,888 EUR in 20 days
0.0 (0 reviews)
0.0
0.0
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Hello, we are exp in Android and IOS/Blackberry/Windows/ with exp over 5 years in this platforms done over 1500 apps for all platforms we will help you in this with quality and long term relations lets discuss more so we can get more clearly. We are in to Android application/Blackberry /Iphone Developers from more than 5 years we provide services like android apps and iphone apps applications done over 500 application
€5,670 EUR in 25 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of GERMANY
Memmingen, Germany
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Member since May 14, 2014

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