friendica.vrije-mens.org
𝕕𝕚𝕒𝕟𝕖𝕒 🏳️‍⚧️🦋
𝕕𝕚𝕒𝕟𝕖𝕒 🏳️‍⚧️🦋 • diaspora
https://en.wikipedia.org/wiki/Telephone_exchange

telecommunications system used in public switched telephone networks or in large enterprises

Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)
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7
Whuffo
Whuffo • diaspora
An old crossbar exchange. They were good in their time, but their time is long over.
Link to source
1

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