Co-Founder of Kamailio (OpenSER) and SIP-Router.org projects, Daniel started the activity in the open source SIP world as core developer of SIP Express Router (SER) back in 2002. Since then, he contributes to various open source VoIP applications, leading Kamailio project and advocates open source in Telecommunication world at different conferences. In 2009, Kamailio (OpenSER) was awarded Best of Open Source Networking Software by Infoworld, acknowledging world wide usage and maturity of the project.