CommCon 2026 Speakers

He is employed as Senior Voice Engineer for QSC AG, one of the major German voice and data providers. Alexandr holds a diploma in physics of Odessa State University. He has 20 years of experience in telecommunication techniques and has contributed to many OpenSource projects like FeeeSwitch, SER, Kamailio, SEMS, Asterisk, SIPP, Wireshark. Alexandr is the founder and main developer of Homer SIP Capture project.

Full Stack Engineer and WebRTC Developer

Ali C. Begen is a computer science professor at Ozyegin University in Istanbul and the founder of Networked Media, an innovation and engineering studio specializing in IP video technologies. Through this venture, he provides expert insights and cutting-edge solutions to media-tech companies and law firms worldwide. He currently serves as an elected member of the Internet Architecture Board (IAB), guiding the technical evolution of the Internet. Previously a technical lead at Cisco in San Jose, California, Begen holds a PhD from Georgia Tech and over 40 US patents. His work has earned him numerous academic and industry honors, including an Emmy® Award for Technology and Engineering. He is a Streaming Video Technology Alliance (SVTA) Fellow and is recognized as a Distinguished Member of the ACM and a Senior Member of the IEEE. More details are at https://ali.begen.net.

Andreas is working in telecoms since over 20 years. He developed and operated open source VoIP systems since the early 2000s, founded Sipwise and created and managed the rtpengine project. During this time, Andreas saw lots of good, bad and ugly aspects of developing and operating telecom systems. This lead him to found Sipfront to support the industry with accessible and modern telecom testing solutions.

I’m a developer at Cellact, working on decentralized communication and identity infrastructure—mostly where VoIP, cryptography, and distributed systems collide in uncomfortable ways.

My work focuses on building authentication systems, wallet-based identity flows, and secure backend infrastructure for real-time communications. I have a slightly unconventional background in psychology and the humanities, which mostly means I spend as much time thinking about trust models as I do implementing them.

Cezary Siwek is a Real Time Communication specialist with over 20 years in the field and the creator of Voiceblender. He has built voice and video infrastructure at Vonage, Stream, and Rakuten Mobile, working across the full RTC stack from carrier-grade telephony to modern WebRTC platforms.

He is the founder of ITsysCOM [www.itsyscom.com], experienced communications architect and VoIP specialist. Dan is a double graduate of Politehnica University, Timisoara, with post-graduate specialization in Communication Protocols and Software Development.

A frequent and well-known contributor to the Open Source community, most noticeably being the co-founder of CGRateS Project [www.cgrates.org], Dan is a firm believer in merging the very best production-ready software to create high-quality, scalable and cost-effective communications solutions

I spent the first part of my career building software applications for telecoms, moving from large corporations (AT&T wireless) to startups, to creating my own startup as VoIP came on the scene in the early 2000s. The second part of my career has been quite different -- still voice comms-focused but this time in the open-source world. I am the creator of drachtio (the open source SIP application server for VoIP) and jambonz (the open source Voice Gateway for Conversational AI platforms).

Henning Westerholt is an Open Source developer and a Senior IT Operations and Software Development Manager. During his career he was responsible for different products at IT Service Providers and also for the internal IT of several large manufacturing companies in Germany. He provides consulting services for Kamailio and VoIP services in the performance, reliability and security areas. Henning is one of the core developers of the Kamailio® Open Source project since 2007 and member of the Kamailio Management team.

Jöran Vinzens has been working in telecommunications since 2000, when he started his career with a vocational training in telephony. Over the years, he has gained hands-on experience across different areas of the industry, from building PBX systems to working in quality assurance.

He joined sipgate in 2011, initially focusing on open-source VoIP components such as Kamailio, Asterisk, and Yate. Since 2017, he has also been developing software, expanding his role from operations into engineering. Since 2019, he has been part of the team building sipgate’s new telephony platform.

Lorenzo Miniero is getting older but, unlike whisky, he's not getting any better. Besides working on the open source Janus WebRTC Server, the imquic library and other projects, he recently had a middle age crisis and got back to old passions, like writing and publishing music using open source software, and trying to write a point and click adventure game engine.

He's the chairman and co-founder of Meetecho, a company providing both consultancy services and communication platforms. He got is degree and Ph.D at the Computer Science Department at the University of Napoli Federico II, where he started working on multimedia conferencing and met the colleagues with whom he co-founded Meetecho as an academic spin-off. He is an active contributor to the Internet Engineering Task Force (IETF) standardization activities, especially in the framework of real-time multimedia applications. He is most known as the author of Janus, a general purpose and open source WebRTC server.

Marco is a Software Engineer at Nimble Ape and at Everycast Labs, and is one of the CommCon organisers. He specialises in Full-Stack Development, from bespoke real-time communications solutions to open source projects.

In his free time, he is driven by fitness, with a particular passion for running and sailing.

Enthusiastic VoIP developer, involved in design and development of various VoIP platforms using OpenSIPS as a core component.

Rob is a greybeard software hacker with too many years professional experience messing around with computers. Some of his hacks have even become profitable companies and most of them have been in real time communication and networking software.

Sam is currently Principal Engineer at Jambonz, previously he's worked at Nexmo/Vonage. O2 Telefonica, Orange and multiple other telecom companies.

In his spare time he builds interesting and creative phone systems working with artists, he once built a system to call every payphone in the UK at the same time.

Sandro Gauci is the founder of Enable Security, specialising in VoIP and WebRTC security assessments. He created SIPVicious, the widely-adopted open source security toolkit, and publishes the RTCSec Newsletter covering real-time communications security. He's spent nearly two decades helping organisations understand where their VoIP systems are vulnerable - and how to fix them.

Tim is the CTO at pi.pe GmBH – who license a cleanroom webRTC stack to connected camera makers (e.g. baby monitors, race cars etc). He has been doing webRTC since before it was a thing, writing code, fixing bugs, listening to people and contributing to open standards (IETF + W3c) and opensource protocols (SNMP, SRTP, ICE, SCTP etc).

His earlier projects range from management code for ESA’s Infrared space telescope, an internet vulnerability scanner and an app providing video-calling for pets.