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Android/iPhone SIP Dialer

I have a VoIP platform for which I need an Android & iOS app (phone/tablet). There is a popular VoIP phone that you can reference for the overall design that has about 5 screens. (Messages; Recent; Contacts; keypad; About; Settings Invite to Use; Privacy).

The app should integrate with the platform I built (OpenSIPS/Asterisk) and pull/push data via a SOAP API. The main functions of the app will include:

1. Making & Receiving VoIP Calls Over 3G, WiFi, GPRS

2. Should not kill the battery of the mobile device

3. Address Book Integration with local Phone Address Book AND the platform

4. User Credentials Save / Change Username & Password

5. Volume Control

6. Protocol SIP (RFC 3261)

7. Media Support RTP (Real Time Transport Protocol) & RTCP (RTP Control Protocol)

8. Transport Mode TCP, User Datagram Protocol (UDP), TCP to UDP Interworking

9. Codecs [url removed, login to view], [url removed, login to view], AMR (Adaptive Multi-Rate Compression), iLBC, [url removed, login to view], GSM.

10. Network Address Translation (NAT) Traversal Through Encryption & STUN

11. Voice Quality Silence Suppression, Packets Loss Management

12. DTMF - (Dual Tone Multifrequency) Generation & Detection (RFC 2833)

13. Call Status Indicator Displayed on phone screen

14. Call History, Call Detail Records, Current Account Balance, Current Account Balance, Current Account Minutes Remaining

15. Speakerphone

16. SMS (through the platform)

17. App will be in English, but should allow for multiple language support by design

18. App should voice and SMS encryption

The app will be marketed on the Google Market/Play and on iTunes, so it should be designed to those specifications.

I would prefer someone that has an "innovative point of view". The VoIP platform and business was designed and conceptualized to allow for multiple SIP phone types to be connected to it and perform different things. The intent here is to find a good developer to build this first project and build more in the future.

NOTE: There will be a focus on front end design clarity (which should be easy because we are using the other VoIP phone as a reference) but the code needs to be clean and error free (I can help test the apps). If you are not a strong developer that can put out well documented code that can be built upon, please do not bid.

Skills: Android, iPhone, Mobile App Development, Wireless, XML

See more: wifi app for android, voip phone for business, view wifi password android, sms apps for android, real time translation free, protocol translation, privacy by design, popular apps for android, popular android apps, need free ios developer, mobile compression, itunes on android, itunes for android tablet, iphone free design apps, iphone developer mode, ios history, intent android, i need to find an app developer, history of android, google voice error, google voice android app, google voice android, google settings android, google contacts android, google business voip

About the Employer:
( 0 reviews ) Saudi Arabia

Project ID: #6074530

41 freelancers are bidding on average $3199 for this job

appstudiozsl

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$3608 USD in 30 days
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technotrust

Hi, We glad to inform you that we have done many heavy rated application design and development. We have reviewed your requirements mentioned in project description. We have a very good skill set in iPhone, iPad More

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mobileservice001

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monster816

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ghulammurtaza204

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JoomlaVogue

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iPanda0000

Dear Sir, Thanks for your job posting here. I have read your job description and I am really interested in your project. I have developed lots of apps before and most of them had been published to app store. Ther More

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TeamValens

Hello, Greetings! I have been through with your requirement , we have developed the VOIP/SIP based solution for iPhone/DROID and bb as well, in a next level of communication we are good to show you the demo as w More

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NZTSolution

Hi ,  I Have 7 Years of experience in Androi/iOS app development . Expertise in different type of app development ,like [url removed, login to view] application ,  2 VOIP based app(Free calling ) [url removed, login to view] application [url removed, login to view] a More

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wancheng

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Lussay

Hi, I would be delighted to work on this project if possible, because it seems to be a very demanding and interesting task. I am 100% confident that I create the UI/artwork design that you desire for your app. I More

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andrewrick25

Hello, We are glad to see your project post and we wish you a success for your project. As we are new to the freelancer bidding portal but we are serving all kind of IT segments since decades. We have large More

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sangitabhuva

Hello, I have read job description then i have decided that i can do this one on IOS and Android side please tell me when we will need to start work on it i have completed more then 200+ app base on iphone and and More

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offenderstechno

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ranganathp

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Thesynapses

Hi, How are you doing? We had a look at your requirement and can surely help you finishing your app to a good standard. We can create an app based on given requirements using VOIP services and enable you talk over More

$12371 USD in 120 days
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Kang1029

Hello, YOU NEED PERFECT QUALITY AND FAST SPEED IN APP DEVELOPMENT? THEN I AM RIGHT PERSON FOR THIS PROJECT!!! I found your job post and I’m very interested in your project. I think you’ll find I have the skills wit More

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LMSI

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$3888 USD in 40 days
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biddyweb

I can handle this project as i have completed several related apps. Kindly contact me and lets discuss more on this project.

$3000 USD in 30 days
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vw580939vw

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