İptal Edildi

SIP-GSM Gateway for Android

This is a repost!

I need an application that 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.

The app should be able to run on cheap devices (+-100$).

I was thinking on a way to emulate a headset and set it as default, so just need to initiate a call on gsm network using core android functions and audio will be automatically forwarded. Maybe this is a solution.

Codecs: Minimum g711, desired g729.

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

o 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 (RTP) to GSM and vice versa.

o The app should be able to run on cheap devices (+-100$).

General

o Deliveries

o The application working in APK format

o Full source code

o Simple manual for compiling and generating the application from source

o The project will be closed source and must be able to be sold on Google Play, so must NOT use an open licensing model that prohibits closed source code.

Features

o Route call from SIP to GSM

o Route call from GSM to SIP

o Convert audio from/to SIP and GSM networks

o Can have 2 or more GSM chips (Only one call simultaneous but may choose the chip)

o Must be able to run on cheap devices like Samsung galaxy Y or Chinese devices like this ([url removed, login to view]).

o Able to run on Android 2.2 and up.

Application Configurations

o Enable or disable the app

o Enable to receive calls only on wifi or all networks

o Enable to route calls from GSM to SIP

o Choose a fixed number to send the call

o Enable to route calls from SIP to GSM

o Route the call to number on INVITE field or a custom field Or route the call to a fixed number defined by user

o Must run on background

o Must be very lightweight to run on small memory devices

o Configure SIP Accounts

o Create a mini dialplan to choose which chip to use based on techprefix

Sip Requirements

o Register on Sip Proxy/Gateway

o Receive call authenticated by IP, user/pass or no authentication.

o Make calls with or without authentication

o Forward DTMF digits using RFC2833 or inband

o Use codec G711 and GSM

o Be able to use codec G729

o Create a mini dialplan to choose which chip to use based on techprefix, per SIP Account

o Hability to register more than 1 SIP account (but receive just 1 simultaneous call)

o Be able to store a CSV with all calls made

Beceriler: Android, Yazılım Mimarisi, VoIP

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İşveren Hakkında:
( 28 değerlendirme ) Sao Paulo, Brazil

Proje NO: #4389327

9 freelancers are bidding on average $1132 for this job

captek

We are VoIP solution provider and have earlier developed various mobile voip dialer for all smartphones with various features. We already have covered all the features you have listed and comfortable doing them. We jus Daha fazlası

in 20 gün içinde2000$ USD
(3 Değerlendirme)
6.3
murtaza1122

Lets Start :)

in 30 gün içinde1155$ USD
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4.9
SICS

Hi, Please check private message. Thanks

in 25 gün içinde1205$ USD
(8 Değerlendirme)
4.9
tmhoang14

Hello, I'm interested in this project. Please arrange the discussion so we can move further.

in 47 gün içinde900$ USD
(5 Değerlendirme)
4.0
softwarecolony

It's an easy task for [url removed, login to view] have gone through your requirements and we are ready to start the work immediately on your project. We will send you the complete list of company's projects and portfolio once you reply us b Daha fazlası

in 30 gün içinde1133$ USD
(1 Değerlendirme)
3.9
getveltrod

Hi, Veltrod Software services is a global software consulting company specialized in providing Mobile applications, Social media frameworks and eCommerce solutions. Leveraging best-in-class people, processes, and te Daha fazlası

in 25 gün içinde1030$ USD
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3.7
veltrod

Hi, Veltrod Software services is a global software consulting company specialized in providing Mobile applications, Social media frameworks and eCommerce solutions. Leveraging best-in-class people, processes, and te Daha fazlası

in 34 gün içinde1030$ USD
(2 Değerlendirme)
0.7
bangdroid007

Please check your PMB

in 9 gün içinde803$ USD
(1 Değerlendirme)
0.2
MrPerfectionist1

Greetings, Let's start..... We are one of the India's highly skilled mobile technology experts. We specialize in giving an App idea a concrete shape with a Guarantee of Excellence, Quick turnaround and Cost-effecti Daha fazlası

in 21 gün içinde800$ USD
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0.0
sourcekode123

Hello, we are expert team of developers. we can deliver end to end solution.

in 23 gün içinde1188$ USD
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pickNboom

We have gone through your requirement and we do have more then 6 years of experience and assure you the product of your choice and will complete the work on time with excellent quality. We can address any concerns that Daha fazlası

in 24 gün içinde950$ USD
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