I worked for a large UK organisation that had cut back on their dialup access but still had 50 or so modems in racks for field workers to dial in to to get their email etc. Also some site to site links remained a dialup connection.
Sorry, no fancy pictures or anything interesting, just reminded me of the time.
A few Datacentres I know have POTS/ISDN capability as they host a fair view VOIP companies. I assume at some point that VoIP call needs to get into the existing telephone network somehow. Also, companies would locate their telephony stack in a DC and route over ethernet just so the kit was more secure and in disaster scenarios they pick up anywhere.
Yup. Lotta places will now give you 1Mbps 95% on FastE inclusive with a service contract, if you ask nicely, and are taking a cage with 20+ racks. Datacenters which ask you to pay it's usually <$50 MRC.
Would guess the transition is slow because if it ain't broke why fix it, and its often a lot more than just provisioning a new circuit, you have to update process documentation, etc.
Sorry, no fancy pictures or anything interesting, just reminded me of the time.