Kapalı

Android phone as GSM Gateway for VoIP

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

Beceriler: Android, Asterisk PBX, Java, Mobile App Development, VoIP

Daha fazlasını gör: chan_mobile, android forward calls to sip, gsm gateway wiki, freepbx gsm gateway, setup gsm gateway, raspberry gsm gateway, sim box gsm gateway, vodroid

İşveren Hakkında:
( 0 değerlendirme ) Czech Republic

Proje NO: #19339629

Bu iş için 11 freelancer ortalamada $1240 teklif veriyor

qanvus

Hi there, Hope you are doing well! Visit our Website : [login to view URL] Or you can check our previous work from the link. Portfolio link : [login to view URL] Kindly provide details of your projec Daha Fazla

$1250 USD in 20 gün içinde
(8 Değerlendirme)
3.8
shenji108

Hello, sir. i have full experience in building voip app using asterisk as server. following shows my products. GCM Dialer [login to view URL] [login to view URL] Daha Fazla

$1250 USD in 20 gün içinde
(5 Değerlendirme)
3.3
ayesha0124

Hi there, I have checked the details. I have rich experience with Android, Asterisk PBX, Java, Mobile App Development, VoIP. Please initiate the chat so we can discuss this job in detail.

$1250 USD in 14 gün içinde
(3 Değerlendirme)
2.5
naishodayo

Hello, sir. I am a talent website&mobile developer. I have already completed a lots of projects like this. I just checked your description. I'm sure I can complete your project successfully. Please contact me so that w Daha Fazla

$1250 USD in 20 gün içinde
(1 Yorum)
2.4
MobileKing1225

Hello Read your description and can know you want a mobile developer. As a mobile app developer, I have already completed a lot of customer projects within fast timeline, objective C usage in the field for over 7 y Daha Fazla

$1000 USD in 20 gün içinde
(4 Değerlendirme)
3.2
js72c

Hello. I am very pleasure the opportunity to discuss this job with you. I am a full time freelancer with skills and experience on PHP and PHP frameworks, JavaScript and JS frameworks and etc. Especially, I have ex Daha Fazla

$1000 USD in 20 gün içinde
(3 Değerlendirme)
0.8
BrandedThemes1

I have reviewed your project brief understood your project scope. Apps Portfolio https://www.freelancer.com/u/BrandedThemes1 Our App Development Process is very simple: Entire project will be managed and deliver Daha Fazla

$1250 USD in 20 gün içinde
(0 Değerlendirme)
0.0
shubhamsinha70

Let me introduce myself - - Overall 8+ years of experience in development. - 2+ years of experience in React. - 3+ years of experience in Node. - 3+ years of experience in Angular. - Good communicator, approx 1 Daha Fazla

$1388 USD in 15 gün içinde
(0 Değerlendirme)
0.0
seaivz

SEAI Technologies Hello! Victoria Martinez, Here to help! We are a company specialized in the technological development of software and hardware, we are located in Venezuela. [login to view URL] is synonymous of innovation, Daha Fazla

$1250 USD in 10 gün içinde
(0 Değerlendirme)
0.0
Vitspl

Hello, We are a platinum certified partner of 3CX in USA. It is an IP based PBX system which follows SIP protocols. We are also well versed on PJSIP, CHAN_SIP, CHAN_PJSIP protocols. We would like to have a tec Daha Fazla

$1500 USD in 20 gün içinde
(0 Değerlendirme)
0.0
SolaceInfotech

Hi, Greetings!!! With reference to your project requirement We will be happy to help you utilizing our 7+ years of experience in software development in multiple domains and involving small team of full stack dev Daha Fazla

$1250 USD in 20 gün içinde
(0 Değerlendirme)
0.0