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.
19 freelance font une offre moyenne de $779 pour ce travail
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
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
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
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
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
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
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
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
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
!!!!!!!!!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
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
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
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
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
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
Android software development is the process by which new applications are created for devices running the Android operating system. Google states that "Android apps can be written using Kotlin, Java, and C++ languag Plus
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
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
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