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Software base Voice and sms origination and termination from Android Phone

We are looking for an application that will run on any Android based phone like a traditional GSM or CDMA VoiP gateway. This project can be in two parts. A mobile application running on the Android platform and able to register on a SIP registration server (Already existing).

The Mobile application will register to a server and accept call from that server with SIP protocol. After that call will terminate to a GSM network. (this part just like a traditional GMS getaway) This mobile application can work with any Internet connectivity, coz GSM internet data normally disable during any GSM call. All call will pass with G729 codec

The registration server may be Windows server based VOIP switch or any other server or customize server. This server will receive call from another VOIP switch server with SIP protocol.

Certain number of registered Mobile will be able to assign in a group of gateway. The application should be able to use SSD for checking credit and recharging the SIM also on the on server side.

Compétences : Android, Mobile App Development

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Concernant l'employeur :
( 0 commentaires ) Rotterdam, Netherlands

Nº du projet : #19556785

19 freelance font une offre moyenne de $779 pour ce travail

TenStar718

How Are You, Sir. I have mobile app( Android, IOS) , php and backend skill. I have experience with Social app, Dating app, Booking app, Video Streamming, IPTV app, Uber style App , Restaurant/Food Deliver app, photo Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 10 jours
(247 Commentaires)
8.8
topstar323

Hi. How are you? I have read your project description and I`m much interested in your project. I have 7+ years` experience in mobile using swift , objective-c , java , react , xamarin , ionic and so on. - android Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 10 jours
(73 Commentaires)
7.6
lazermann

Hello! My name is Igor, I can help you I am a developer of applications for android Feel free to contact me at any time to discuss the details of the project

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(21 Commentaires)
6.0
eliteapps

We can develop you a SIP client application by using linphone. I undertand that you will enable G729 codec for audio calls and what codec will you use for audio calls?Do you want conference calls, call transfers etc.. Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 25 jours
(8 Commentaires)
5.3
cindcoder

Hi, there. I 'd really like to with you on this project if possible! My name is Filipp and I am a web & mobile app developer with nearly 10 years of experience, with 4 of these years in web based iOS/Android App Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 10 jours
(2 Commentaires)
5.1
Mobileappsoln

Hello, I have checked your project requirement and understood project needs. I have extensive experience with web app and mobile (Android/IOS) app design and development . I have done many kind of project ,so I am c Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(8 Commentaires)
4.8
KGeorgy

Hello, I am pleasure with your job for Software base Voice and sms origination and termination from Android Phone. Thank you for the job posting. It’s a pleasure to meet you. I’d really like to work with you on this on Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(9 Commentaires)
4.1
inerudition

Hi there, Please let me know the scope of the project. We are Erudition Informatics Private Limited a web and Mobile application development Agency based at Kolkata , India We are a team of 15 Developers and designers Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(3 Commentaires)
3.2
VIPIGOR125

Hi there! I've read your project description very carefully. I know this project is not simple and how difficult this is. But I am sure that I have ability to do this project. In fields of android application devel Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(4 Commentaires)
2.8
Leskov200081

!!!!!!!!!EXCELLENT EMPLOYER!!!!!!!!! Dear sir. Though I'm new to Freelancer.com, I have been in web and android developing area for over 10 yours. I'm very interested in your project. I can develop the project to yo Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(1 Évaluation)
1.9
keiyang

HELLO SIR GREETING OF THE DAY. I FOUND YOUR POSTING REGARD application FOR THIS TODAY. I am pleased to introduce myself I am excited to get to work on your new mobile applications. I have developed so many application Plus

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(4 Commentaires)
2.1
ZawnTechnologies

Greetings I have gone through the project description and i have great expertise with Android, Mobile App Development. You are welcome to chat with me so that we can discuss in detail. vw8190874vw could you please inbo Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 15 jours
(4 Commentaires)
1.6
Swapnilja

Hi, As per your requirement we have a large experience in IOS/ANDROID app development. ==== > Technical Solution MySQL for server database and Java spring framework for API’s. Java android native sdk for android deve Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(1 Évaluation)
0.3
AyeshaShuja

Good Day, I have seen your project description and i have relative experience with Android, Mobile App Development. Please initiate a chat with me so we can discuss about your project details and proceed from there. vw Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 12 jours
(3 Commentaires)
0.4
sodiqa32

Hello, I am pleasure with your job as detailed. Thank you for the job posting. It’s a pleasure to meet you. I’d really like to work with you on this one if possible! I do have a couple of questions, but first I’d like Plus

%bids___i_sum_sub_32% %project_currencyDetails_sign_sub_33% USD en 1 jour
(1 Évaluation)
0.0
vvventure

Android software development is the process by which new applications are created for devices running the Android operating system. Google states that[3] "Android apps can be written using Kotlin, Java, and C++ languag Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(0 Commentaires)
0.0
Vitspl

Hello, We have gone through your requirement and we have succinctly understood your requirement. We would like to discuss and freeze the complete scope of the project as it will help us to suggest you an optimal sol Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 10 jours
(0 Commentaires)
0.0
johnprogramming2

for web design - website and all other web development . ----------------------------------------------------------------- I am a Full Stack - mean Stack Developer 16+ yr. Exp. I can develop web & Mobile apps. W Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 5 jours
(0 Commentaires)
0.0
pritiup

Thanks for posting this interesting job. I can get this custom platform developed as per the description shared above. Interestingly, I've worked on - [login to view URL] - which seems to have overlapping features Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 20 jours
(0 Commentaires)
0.0