Android phone as GSM Gateway for VoIP

$1500-3000 USD

Chiuso

Pubblicato

circa 4 anni fa

$1500-3000 USD

Pagato al completamento

We need an application that runs on Android phones (4.0 or above) and can receive calls through SIP and forward it to the GSM network. The application should then forward the audio and convert from SIP to GSM and vice versa. Full description below. Please review and message me with considerations. If any requirements are unable to be met, please let me know before we make a deal. General Deliveries The application working in APK format Full source code Simple manual for compiling and generating the application from source A SIP client running on another phone that connects to the server via WIFI and able to demonstrate the functionality in this project. Features - Route call from SIP to GSM - Convert audio from/to SIP and GSM networks - Able to run on Android 4.0 and up. Application Configurations - No need root access - Enable or disable the app - Enable to receive calls only on wifi or all networks - Enable to route calls from SIP to GSM - Choose GSM module to use - Must run on background - Must be very lightweight to run on small memory devices - Configure SIP Accounts. Sip Requirements - Register on Sip Server - Receive call authenticated by IP, user/pass or no authentication. - Make calls with or without authentication - Forward DTMF digits using RFC2833 or inband - Use codec G711 and GSM - Be able to use codec G729 - Be able to store a CSV with all calls made

Android

Mobile App Development

Asterisk PBX

VoIP

Java

Rif. progetto: 24651923

Info sul progetto

14 proposte

Progetto a distanza

Attivo 4 anni fa

Hai voglia di guadagnare un po'?

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14 freelance hanno fatto un'offerta media di $2.466 USD

@Mobiquick

Hi, I am a senior developer working here with the small team with mixed values and experienced. I have gone through your post and i found my self perfect developer and would love to be a part of your project. I will dedicated myself for your project full time basis 40 hours / week and provide you ongoing support. We can work together on the scope and deliver the job on time line. I look forward to hear from you soon. Regards, Mahima

$2.250 USD in 30 giorni

5,0

(21 valutazioni)

6,4

@Programmer59

Hello Sir, I am professional mobile app developer with having more than 5 year's experience in this field. I read your project description and I am interested in it I need some more information related to your project Can we discuss the project ? I am waiting for your response Thanks Note: Final price will be discussed after complete requirements.

$5.000 USD in 30 giorni

5,0

(50 valutazioni)

6,4

@Alphawizz

Hello, I have gone through the details an application that runs on Android phones (4.0 or above) and can receive calls through SIP and forward it to the GSM network. Please open a chat window for more discussion I will share with you my previous work to get more confidence and we will make a deal and work on our project. I am an expert in web and mobile app design & development with 5 years of experience. I have delivered many successful applications in the global market. Looking forward to a positive response from you. Thanks

$2.250 USD in 7 giorni

5,0

(7 valutazioni)

5,8

@AITSoft

Hi, I saw that you need help with Mobile App Development, Android, Java, Asterisk PBX and VoIP. I have 6 years of experience working on these frameworks. I believe I can help you with it. I would request you to have a look at my porfolio, customer feedbacks from my profile. If you find me worthy of doing your job. Please start the chat and lets discuss it. Regards Shamshad

$3.000 USD in 11 giorni

5,0

(23 valutazioni)

4,7

@hsh564cf84accd96

we will do your work I am writing this proposal in order to work for you in Software and Web Development. We are highly trained professional developers seeking to freelance and earn online. Having a flair in programming and development I have been excellent with JAVA,C#,C/C++ and PHP programming language along with MySQL with XAMPP Server. I also build application for Cloud computing and High performance computing as I also have knowledge regarding Hadoop, MPI, OpenMP (distributed frameworks) and also have build applications in CUDA C++ and OpenCL. I also have experience with the most famous framework ASP.NET. My most expertise are in JAVA where I have built countless projects for semester projects and Final year project. You may find many developers in this field however we assure that you will not be able to find a team like us. We not only ensure the code is quality wise but we also assure that the code we write are optimised and we ensure that the program performs right operation under right environment i.e. we create programs that are defect free. You may also find freelancers that cost low but they do not put their 100% which then shows in the software and leads to an unhappy customer. We ensure reasonable price are put as tag on the job and we ensure in order to give the write product. We highly appreciate your time, if you are interested kindly let me know

$1.500 USD in 7 giorni

4,6

(12 valutazioni)

4,1

@hary0150

Hi, I have gone through the skills you've recommended and I'm filled with confidence to do your work. I can do this ASAP!! If you will trust me I Will complete all my best for you. Regards Harry

$2.800 USD in 22 giorni

5,0

(7 valutazioni)

2,7

@intevest123

Hello, Greetings from Intevest , We have done similiar kind of work, you asked in requirement, lets chat, to discuss specific feature Hello, I’m Manish. We are team of 90 members, dedicated to serve every client, we work on weekend too for fast delivery of projects My skill set; Python, Angular, Vue, AI, AR, Android, React-Native, IOS, Objective C, phonegap, Iconic, golang, iot, php, hybrid app, unity games I’ve gone through your entire work description as you have mentioned. I’ve been dealing with potential clients for more than 9+ years from all over the world. I’ve been developing mobile applications for the past 7+ years. I’m very much interested in working with you. I look forward to hearing from you. Please feel free to contact me for any questions; I’m 24/7 available.

$3.000 USD in 37 giorni