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SIP-GSM Gateway for Android

This project received 25 bids from talented freelancers with an average bid price of $625 USD.

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Employer working
Project Budget
$250 - $750 USD
Total Bids
25
Project Description

HI

an application is needed which runs on Android and iPhone 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.

Summary

The goal of this project is to develop an application that can receive calls through SIP and forward them to the GSM network.

The application should then forward the audio and convert from VoIP to GSM and vicevers

Features

- Route call from SIP to GSM

- Convert audio from/to SIP and GSM networks

- Configurable SIP Accounts.

- Register on Sip Proxy/Gateway

- Receive call authenticated by IP, user/pass.

- Forward DTMF digits using RFC2833 or inband

Deliveries

The application working in APK format

Full source code

Simple manual for compiling and generating the application from source

Payment only after demonstration the functionality of the project by a SIP client running on a phone.

Skills Required

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