Asterisk on Android creating SIP-GSM gateway

$750-1500 USD

Closed

Posted

over 7 years ago

$750-1500 USD

Paid on delivery

I need an application that runs on Android phones (4.0 or above) and can send/receive calls through SIP (Can use any sip stack like sipdroid) 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. Summary The goal of this project is to develop an Android application that can send calls through SIP and forward them to the GSM network AND receive calls from GSM and forward to SIP. The application should then forward the audio and convert from VoIP to GSM and vice vers 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 - Route call from GSM to SIP (preconfigured SIP client) - Convert audio from/to SIP and GSM networks - Able to run on Android 4.0 and up. Application Configurations - Enable or disable the app - Enable to receive calls only on wifi or all networks - Enable to route calls from GSM to SIP (SIP address is configured through an API) - The number to send the call should be configured through an API that is supplied with the APP - Enable to route calls from SIP to GSM - Must run on background - Must be very lightweight to run on small memory devices - Configure SIP Accounts. Sip Requirements - Register on Sip Proxy/Gateway - 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 - Receive through GSM one 1 simultaneous call and rout it to a predefined SIP client - Be able to store a CSV with all calls made Skills required: Android, VoIP

Android

Asterisk PBX

VoIP

Project ID: 12035618

About the project

25 proposals

Remote project

Active 7 yrs ago

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25 freelancers are bidding on average $1,429 USD for this job

@DavidLiu80

Dear Client, I am an experienced android developer who has great and various skills. I am also good at native iOS, unity 3d game, web development and support. I can work in your time zone and respond at any time. Looking forward to hearing from you. Thanks

$1,200 USD in 20 days

4.7

(63 reviews)

7.6

@Shopify

I want to discuss this project with you further, let me know the best suitable time for you to schedule the meeting, Feel free to message me at any time, i used to be online 14 hrs in a day on this website so probably you will get a quick response from my end.

$1,443 USD in 25 days

5.0

(11 reviews)

6.5

@espsofttech

Hello respected client, Hope you are doing well. I have gone through your project requirement. I can build this app as per your needs with great perfection in timely manner. I have 5 year experience in app development. I am very interested to know more about this job. Lets discuss more to get an exact bid. Looking forward for your reply. Thanks & Best Regard’s shelly

$1,184 USD in 7 days

4.7

(14 reviews)

6.4

@cuibeauty

Dear Sir, I am happy to be here to contact you. Sometimes a chance may change the whole life, and it will be that great chance of success of your business and life. "No pains, no gains", but you get me here, you can gain success with no pain, as I have rich and profound expericence in android and iphone developement. I have worked for domestic and global development with android studio and xcode for 4 years. So your project is not great difficulty for me, but it is of my skill and experience. High quality, short development time, fast and flexible communication will give you amusement also in business. Life is beautiful, and let's make business beatiful. Best regards !

$1,250 USD in 20 days

4.8

(20 reviews)

5.6

@RubyOnRail

Hi,I have gone through your project description. I could be confident if we can proceed towards more discussion. I am an individual developer and you will be working directly with me if we proceed work on this project. My key skills are - 1)Ruby 2)Ruby On Rail 3)Angular JS 4)Node JS 5)PHP with codeigniter and Laravel Framework. Let's initiate our chat so we can proceed towards conclusion of this project scope and give it a start as soon as possible. Thank & Regards Prashant Shinde

$1,666 USD in 35 days

5.0

(5 reviews)

5.1

@parsysmedia

Hello, We have 5+ years experience in Mobile Apps Development/designing & provide you the most comprehensive services suitable to your requirements. We have magento certified resources who are working dedicatedly to cater the requirements of our clients. We assure you that we will serve you with the best quality of services and fulfill your requirements within/before the estimated date. We hope to receive a positive and quick reply from you. Thanks & regards, Parsys Media

$1,388 USD in 20 days

0.0

(0 reviews)

0.0

@HuamulanOfITage

Dear,sir Nice to meet you. I have read your project description in carefully and it's very clear to me. I have read your post carefully and understood your requiements in full degree. I have an experience of 5+ years of programmer and also talented skill of android & iOS app development . I have good experience of mobile app developing more than 5++years. I am a mobile and web developer and have full experience for 5 years. I have understood your app description and I think I can finish it as you can satisfy. I am always ready to start work immediately for you. You can see high skilled apps in my portfolios. I believe that my skills would be ideal for your project.

$1,250 USD in 20 days

0.0

(0 reviews)

0.0

@PHarut

Hi ! I was just going through your job posting and I believe that I have the drive, energy and knowledge to be perfect for this job. My experience as a Developer includes working with mobile applications (most of all diferent VoIP projects) by integrating them with different platforms using an assortment of protocols makes me perfect for your job. I hope you would choose me for this job and my assurance to get the job within budget and on time. Best regards Harut

$1,250 USD in 10 days