On 30 Apr 2021, IB Joe said the following...
 
 IJ> response ... I did not want to hear the sound myself but rather have the
 IJ> user hear it. I have a wav file of a 56K modem... I just thought it
 IJ> would be cool for that to play during a terminal connect.

BBSes don't usually stream audio :)

there was one term someone was working on with an out-of-band data channel that did some extra stuff like that, but it's extremely non-standard

--- Mystic BBS v1.12 A47 2021/04/20 (Windows/32)