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Welcome at the "Chaosvermittlung", the chaos field phone exchange The "Chaosvermittlung" is a loose group of people playing around with vintage field telephone technology. We aim at providing field phone infrastructure at certain events of the Chaos Computer Club or similar. We partly claim the right of the uninitiated and set out to discover this fascinating technology in our own way. We use it as a play ground for experimentation and combine it with the technical toys of our days. Although the name is German, we are not limited by that. Everyone is welcome to participate in any form. Whether you just want to help out as an operator at the exchange during an event or if you want to get deeply involved. It's all up to you. Go get in touch with us, we are just a crank away! Sub projects Sidechannel Supplementary field phone connections for the end points of the Seidenstrasse pneumatic tube system. C-Systems (called Datachannel before) DSL over field wire. Gear (standard) This is the realm to collect all knowledge about our standard equipment "as it is". Everything that is helpful for maintenance and operation of the stuff. field phones exchanges fixed line dial interface Chaos-tech Here we cover all the things we come up with on our own. Things we build, modifications we do on the standard equipment, any special hardware configurations, chaotic operation procedures we might develop, and so on... optical bell audio signal input a talking clock set up phone skins Image galeries Images of gear in the wild. field phones exchanges

Events Things to come 37c3 Where we participated Datenspuren 2023 CCCamp23 GPN21 May contain Hackers 2022 GPN20 Hack and Make 2021 36c3 Groden19 CCCamp19 GPN19 Easterhegg2019 35c3 GPN18 Easterhegg2018 34c3 mrmcd2017 SHA2017 ccs17 Easterhegg2017 33c3 mrmcd2016 ccs16 GPN16 Easterhegg2016 32c3