Communication without Borders: Cross-Platform VoIP (gpn24)

Communication without Borders: Cross-Platform VoIP (gpn24)

Author: CCC media team June 5, 2026 Duration: 45:20
Recent events, such as Discord's controversial push for personal ID verification, the use of AI models for age-determination and the widespread analysis of user-data , have laid bare a harsh reality: proprietary platforms can't be trusted anymore. Our ability to communicate is a privilege granted by corporations, subject to their changing terms and invasive policies. While some users are leaving common communication platforms because of policy changes, others remain. This isn't just about inconvenience, it fractures communities; This unfortunate fragmentation is what our project, "Communication without Borders," directly challenges. We are building an open-source, low-latency bridging framework designed to act as a universal translator, connecting any VoIP platform to any other and giving users the freedom to choose their client without being isolated. As our initial proof of concept, we are focusing on bridging the centralized world of Discord with the federated universe of Matrix. However, it is our goal that our architecture is not just a one-off solution; It is an easily extendable framework designed for high fidelity and minimal latency, allowing for the rapid addition of new platforms. During this presentation, we will demonstrate the current state of our project, dive deep into the technical challenges we face, from real-time audio over privacy and security to identity and presence mapping. Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn24/talk/MLPPNQ/

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Author: Episodes: 100

Chaos Computer Club - recent events feed
Podcast Episodes
Infrastructure Review & Closing (gpn24) [not-audio_url] [/not-audio_url]

Duration: 1:16:35
Große Zahlen und ganz viel WOW Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn24/talk/MTP7YB/
WAF: Wrong Approach Firewall (gpn24) [not-audio_url] [/not-audio_url]

Duration: 1:01:42
Web Application Firewalls (WAFs) for filtering based on HTTP and payload are omnipresent. In this talk an argument will be made that, in many cases, the wrong approach for implementing WAFs is chosen: They are implemente…
Building video games with 20 year old tech (gpn24) [not-audio_url] [/not-audio_url]

Duration: 19:10
The market is full of high-performance graphics APIs like Vulkan and fantastic engines like Unreal and Unity. So, why not use DirectX 9 and a self-built engine instead? ;) In this talk we'll take a quick stroll down memo…
Three Languages, Triple the Confusion (gpn24) [not-audio_url] [/not-audio_url]

Duration: 20:21
This code runs without errors, but still confuses. In this talk, we explore some subtle quirks of C, Python, and Java (and others) that catch even experienced developers off guard. No bugs, no typos - just the language d…
MMO-CHIP: From Microscope to Verilog in an hour (gpn24) [not-audio_url] [/not-audio_url]

Duration: 58:45
Reverse engineering old custom chips from microscope pictures is cool, but oh so painfully slow! Last time I did this (talk at 38C3), I spent two weeks waking up, annotating wires in Inkscape, going to bed, and then drea…
DI.Days as Anarchist Practice/Anarchist Practices for DI.Days (gpn24) [not-audio_url] [/not-audio_url]

Duration: 44:54
Digital Independence Days are a response to the growing monopolization of technology and the recent loss of trust in US-based tech firms after the USA's shift towards authoritarianism. The (communicated) goal is to prote…