Android creating SIP-GSM gateway
$250-750 USD
着払い
I need an application that runs on Android phones (4.0 or above) and 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.
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
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 to GSM and vice vers
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
- Route call from GSM to SIP (preconfigured SIP client)
- Convert audio from/to SIP and GSM networks
- Able to run on Android 4.0 and up.
Application Configurations
- Enable or disable the app
- Enable to receive calls only on wifi or all networks
- Enable to route calls from GSM to SIP (SIP address is configured through an API)
- The number to send the call should be configured through an API that is supplied with the APP
- Enable to route calls from SIP to GSM
- Must run on background
- Must be very lightweight to run on small memory devices
- Configure SIP Accounts.
Sip Requirements
- Register on Sip Proxy/Gateway
- 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
- Receive through GSM one 1 simultaneous call and rout it to a predefined SIP client
- Be able to store a CSV with all calls made
Skills required:
Android, VoIP
An standard SIP client running on a seperate android phone will have to connect to the SIP server that was developed on the other android phone via wifi and an incoming and outgoing call would have to to be demonstrated.
プロジェクトID: #20302900
プロジェクトについて
10人のフリーランサーが、平均$737 で、この仕事に入札しています。
Hi, its pretty simple for me but I have few questions to ask, knock me for further discussion, PLEASE DON'T AWARD PROJECT BEFORE DISCUSSION. Thank You
Hi there, Hope you are doing well. I have read your requirements about your project very deeply and I believe that I can complete your project within your budget and time. A, Desired website and application [ IOS and もっと
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. I am new to freelancer.com bu もっと
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