I am an experienced developer in C/C++ and Qt/QML framework for application development on multiple platforms, both desktop and mobile. I live currently in Bucharest, Romania.

I have developed VoIP applications for various fields like soft-phones, auto diallers, recorders, etc. I have experience with SIP protocol and PJSIP library. While usually VoIP applications are server based, my interest is in peer to peer VoIP applications when no server is needed.

Currently I have implemented a peer to peer softphone using PJSIP library that works only on (virtual) Local Area Networks (LANs). Voice support has been added and I plan to add also support for chat, video and file transfer. The communication is encrypted end to end using TLS.

I am planning to extend this VoIP application by adding support for blockchain. This should allow for improved security and to communicate even when the peers are not in the same LAN.

I am looking for sponsors in order to finance the development of peer to peer VoIP applications using different backends: PJSIP, blockchain, etc.