SIP-GSM Gateway for Android

Cancelled

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

Skills: Android, Software Architecture, VoIP

See more: android gsm gateway, sip gsm gateway android, android voip gateway, sip gateway android, android gsm sip, sip gsm android, gsm gateway android, android sip gsm gateway, android gsm gateway app, forward gsm sip android, android forward sip, android gsm voip call forward, android sim gateway, sipdroid gsm gateway, sip gsm app, android gateway gsm, android sip gateway, gsm sip gateway android, android sip gsm, android gsm voip gateway, sip gsm network, sip gsm, working for samsung, wifi app for android, the app store for android

Project ID: #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 More

$2000 USD in 20 days
(3 Reviews)
6.3
murtaza1122

Lets Start :)

$1155 USD in 30 days
(12 Reviews)
4.9
SICS

Hi, Please check private message. Thanks

$1205 USD in 25 days
(8 Reviews)
4.9
tmhoang14

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

$900 USD in 47 days
(5 Reviews)
4.0
softwarecolony

It's an easy task for us.We 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 More

$1133 USD in 30 days
(1 Review)
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 More

$1030 USD in 25 days
(4 Reviews)
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 More

$1030 USD in 34 days
(2 Reviews)
0.7
bangdroid007

Please check your PMB

$803 USD in 9 days
(1 Review)
0.2
sourcekode123

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

$1188 USD in 23 days
(0 Reviews)
0.0
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 More

$800 USD in 21 days
(0 Reviews)
0.0
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 More

$950 USD in 24 days
(0 Reviews)
0.0