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.
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
- 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
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.