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Android APP (GSM to VoIP gateway)

In a scenario where there is:

- A Asterisk VoIP server (provided to you)

- A phone extension connected to the Asterisk server (provided to you)

You should build an Android APP that connects to the Asterisk Server and is able to do the following:

A) Receiving a GSM Call and Making a VoIP CALL

1) Automatically answer phone calls

2) Take GSM Audio call and create a voip IAX2 protocol call to a voip server

3) The app should receive the audio from the GSM call, encode it and send to the voip server

4) The app should receive the audio from the VOIP call, encode it and send to the GSM call

B) Receiving a VoIP Call and Making a GSM CALL

- The APP should be listening to a "mqtt" topic on a server and receive instruction on what to do.

- If the instruction is to "PlaceCall", it should receive the destination number and:

1) It should establish a GSM call to the destination

2) Execute the same steps A2, A3 and A4

Deliverable

- The Android app mentioned above

- An Asterisk configuration to: 1) receive the call and redirect to an extension and 2) receive a call from the extension and redirect the call to the Android APP

Generic Notes:

- The app should be Android Native

- The backend should run on Linux Ubuntu 18.04 (you can only install system packages that are distributed within the Ubuntu official packages - all other packages must be installed within the project).

- You should work over slack (not Freelancer chat)

Milestones:

- 10% on start after signing NDA

- 50% on first full test (no exception): all features must work (even if with bugs)

- 40% on full delivery

技能: 安卓, 移动应用开发, VoIP, Linux, Asterisk PBX

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关于此雇主:
( 4个评论 ) Lisboa, Portugal

项目ID: #22229233

13 威客就此工作平均出价 $937

AwaisChaudhry

Hi,. I have gone through the brief details mentioned on the job. I have done multiple jobs with Android, Asterisk PBX, Linux, Mobile App Development, VoIP which are the skills required to get this job done. Lets start 更多

$750 USD 在9天内
(43条评论)
7.5
kodecubeinfosys

Hi, Greetings of the day! I read your requirement for the App development! I am leading India based trusted mobile and web application development company having more than 10 years of experienced in creatin 更多

$809 USD 在40天内
(48条评论)
7.0
seekdeveloper

Hi, I'm a talented developer for iOS, Android and have 11.2 years full time development experience. I have already developed a great number of various applications, namely on-demand services, location-based apps, s 更多

$750 USD 在7天内
(14条评论)
7.3
SwapnilChouhan

Hi, I understood concept of GSM to VoIP calling Android app you want. I have expertise in Native Android app development. I agree to conditions you mentioned in Project detail. Q. Where will be Ubuntu server hos 更多

$3500 USD 在55天内
(62条评论)
5.9
mobiappsoftware

Hello , I have seen your requirement and I will do this in less time. you need a mobile application so I am interested in your job because I already completed this type of job. so i want one more similar job so i can 更多

$255 USD 在5天内
(16条评论)
5.5
spdsolusion

Hi Hope you are doing well. I have reviewed your requirements and we can implement all of your requirements with high quality work. Please have a look at our company website. You will find our past works, ser 更多

$500 USD 在7天内
(13条评论)
5.4
ByteZappers

Hi, We have a specialized team for Android App development. We would not only provide you a great design but will also optimize the code for ultimate performance and save resources of both users and server. In short o 更多

$1500 USD 在25天内
(2条评论)
4.1
nt1225

Hi Thank you for your response. I just checked your project description, so it looks like a perfect fit on my skill sets. I have already developed a LinPhone App which based on LinPhone SDK. So your app based on GSM a 更多

$700 USD 在7天内
(5条评论)
3.8
mozammalidbctg

Hi , I am experts in Android &IOS application development and I specialised in Open Source & SCM solutions, such as Git, Subversion, Mercurial and Atlassian's JIRA, Confluence and Stash and have worked in a Test-Drive 更多

$400 USD 在20天内
(2条评论)
1.8
mmarcoseguridad

I am an informatic with more than 30 years of experience in Computer Security Professional, expert in ethical hacking, linux, blockchain, Telecommunications, Voip, networks, programming, server administration, asterisk 更多

$750 USD 在30天内
(1条评论)
2.9
mgmotzer

Hey Meredith here, I have gone through the description and it’s according to my expertise so I can complete your task easily. I can handle HTML/HTML5, CSS/CSS3/SASS, JavaScript/jQuery, and PHP with frameworks such as C 更多

$400USD 在1天里
(0条评论)
0.0
danieleblopez

Hello, I am new to the platform and I would like to get my first project. I have 5 years of experience in software. I would like to know more. contact me to chat thanks

$1111 USD 在7天内
(0条评论)
0.0
sirajahmadzai

Dear Hiring Manager, After reviewing your job description, it’s clear that you’re looking for a candidate that is extremely familiar with the responsibilities associated with the role, and can perform them confidentl 更多

$750 USD 在7天内
(2条评论)
0.0