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SIP dialer integrate with voipswitch

Need a SIP dialer integrate with voipswitch (as same as vippie but doesn't need have other functionality like IM or send file and etc.)

Main functions of the app will include:

[url removed, login to view] calls through mobile data connection (GPRS, EDGE and 3G) and also WiFi.

2. Integrated contacts from the phone.

3. synchronize phone contacts to server.

4. Time, call status logs, last calls log and Redial

5. Call Thorugh functionality. (let use choose call through access number.)

6. Support for codecs OPUS, g729, GSM, g711..

7. Built-in tunnel for passing through voip blockades

8. Enhanced battery usage (should not kill the battery)

a. The source code should fully documented.

b. Simple easy to use UI.

Skills: Android, iPad, iPhone, Mac OS, Mobile App Testing

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About the Employer:
( 0 reviews ) United States

Project ID: #12124113

21 freelancers are bidding on average $1321 for this job

HugeWave

Dear sir. I am a professional mobile app developer and have full experience for 6 years. I read your project description carefully and I can understand what you want. So now I can start your project and until More

$1250 USD in 20 days
(76 Reviews)
8.1
monoLancer

Hello, How are you? I had read your job description and many interest. I check all tech problem via google,and known that i can do this project well. This project match with my skill and experience, i have fu More

$1250 USD in 20 days
(63 Reviews)
7.9
$2964 USD in 30 days
(129 Reviews)
8.2
covernal

Hi. 99.99999% Completion Rate!!! I have completed all projects as successful on the [url removed, login to view] I will provide you my professional skills for your project. Please check my work history on Freelancer. You will be More

$1441 USD in 20 days
(62 Reviews)
7.8
$1250 USD in 20 days
(54 Reviews)
7.4
shreeyait

Hello Sir, Hope you are fine there. We are having good experience with Mobile App projects and the reason we came across here to give the best output to your project with supreme quality. We have developed More

$780 USD in 15 days
(31 Reviews)
6.7
seekdeveloper

Hi, I have read your post and understood your requirement and I have great experience working on -Native: iOS, Android (Objective-C, Swift, Java), PhoneGap, JNI, NDK (C/C++),Cocoa, Cocos2d game engine, OpenGLES, c More

$1546 USD in 15 days
(12 Reviews)
7.2
Goldenwork99

Hi, sir. Thanks for your job posting! I read your job description carefully and I have confidence to do it. I am a iOS/Android developer with +6 years experience and your project is very interesting for me. More

$1250 USD in 20 days
(24 Reviews)
6.2
WienFuJong

Hi Dear Employer, how are you? I Will Provide You Great And Perfect App To Lead You To The Success In Your Business As Well As Full Services. I saw your project description carefully and thought that your project was More

$1323 USD in 20 days
(23 Reviews)
6.7
TechStormTeam

Hello, I have strongly experienced about Sip Phone & Chat App. Here is my past works: Another Customized iOS linphone app: [url removed, login to view] I can do t More

$1647 USD in 20 days
(25 Reviews)
6.3
Champian

Please share more details about the functionality you want in app I have gone through project description, but I would like to discuss to clear my understanding of requirements. Please PM me so we can discuss the More

$1320 USD in 25 days
(11 Reviews)
6.2
RubyOnRail

Hello, Its a pleasure to let you know that I've Completed and Delivered similar project before. All I need to work upon customization part, if we can proceed towards more discussion. I have gone through your project More

$1555 USD in 25 days
(9 Reviews)
5.5
r4rony

Hi, I have gone through the description and glad to say that we have experience in developing Native Mobile App and we are confident to provide you the work you are looking for. We have a team of experience develo More

$1340 USD in 20 days
(11 Reviews)
5.6
AleenaIlyas

Hello, I have read what you exactly need, however I would like to ask you a few questions. I do work smart and do not rest until I get the job done. Please feel free to ping me anytime so we can have a detailed discuss More

$1250 USD in 20 days
(10 Reviews)
5.5
deadlydroid

I will develop it for both Android and iPhone

$1111 USD in 30 days
(26 Reviews)
4.7
Danharrison

Hey, This bid has been placed to secure our place between several [url removed, login to view] we receive SOW/SRS,we can then adjust proposal amount and time accordingly. We are interested in working for your [url removed, login to view] have de More

$1488 USD in 20 days
(1 Review)
3.5
meFreelancer247

I am 5+ years experienced in Mobile App (Android/iOS) developing and publishing applications in the respective stores and and Web Development (Ruby on Rails, WordPress, AngularJS, PHP, Javascript etc.). I have More

$750 USD in 18 days
(2 Reviews)
0.7
surbhihastir11

i have gone through your description . I also have done a project in live video streaming and i have 3 year of experience in android development.

$833 USD in 5 days
(0 Reviews)
0.0
AppSquads

Hello, Thank you for sharing opportunities. we are a team of 70 full time freelancers having expertise on PHP and all CMS like WORDPRESS, PRESTASHOP, OPENCART, JOOMLA, SHOPIFY, MAGENTO. We also worked on AngularJS More

$1250 USD in 20 days
(0 Reviews)
0.0
mobiledev4app

Proficient Experience in SIP/XMPP area in about 5 years, passionate about this technology always keep any eye on new technology coming up.

$1250 USD in 20 days
(0 Reviews)
0.0