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Who still uses pagers?
(www.voanews.com)
This is a most excellent place for technology news and articles.
People that work on-call do this, especially in tech or security.
I'm considering making the switch because my paging calls are from a random set of phone numbers, so I cannot attach a specific ringtone to them. After a few horrible pages, you start to associate your phone going off as a world-ending experience, when it's just your wife calling to ask if you want her to pick something up for you from the shop. A separate device that disassociates my phone from pain would be nice.
Alternative thought, what about dual sims? Could you not assign a ringtone to a specific sim, and use that sims phone number only for work?
Barring that, something like a Google Voice number would work, too.
This along with a work profile works just fine
Like a work phone?
Could you not just change the ring tones of your contacts to something else and then have all unknown callers use the bad time ring tone?