Welcome to the TechnicallyObsolete blog!
This is likely to be a very sporadically updated collection of technical projects and reverse engineering notes, with a particular focus on telephones and obsolete CPUs.
I’m currently in the middle of a large reverse engineering project studying various different types of Panasonic Hybrid and Super Hybrid telephone systems.
I’m expecting that project to take quite a long time, so to cover the very small possibility that there's someone else looking for information on the Panasonic SuperHybrid protocols, here it is: