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I think it's ignored because the story is focused on databases' HA. My impression from my limited telco experience (correct me if it's wrong) is that there was

I think it's ignored because the story is focused on databases' HA. My impression from my limited telco experience (correct me if it's wrong) is that there was not much "database stuff" happening in telcos back in the days: only dispatch tables and call duration records come to mind. With then prevailing post-call billing, I assume a lot of the hard constraints on consistency were not there.

aarghh 8y ago
Banks and telcos both had database systems that had zero downtime in 20 years, in some case. Tandem Non-Stop was very real - https://en.wikipedia.org/wiki/NonStop_(server_computers) https://en.wikipedia.org/wiki/NonStop_(server_computers)
- misiogames 8y ago
  They still are :D
C1sc0cat 8y ago
Custom cameras and mechanical counters at one stage I believe. Though telcos have much higher standards when it comes to the network / exchanges major failure's where meant to never happen.