OS/2, vintage PC computing, and random musings
It’s not mentioned by name, but could give some context:
Curiously the IBM Voice Communication Adapter was supported in “IBM 3270 Personal Computer AT” and “IBM 3270 PC (5271)” now I wonder what would one do with such configuration.
In a site that was mentioned in a comment before there is a “IBM Voice Communications Adaptor AT Diagnostic Disk”, you could at least try that.
Could be interesting make a driver for that card. Probably every time that a sound is played every other thing stops.