why not setup a python script that runs in the backround and is waiting for a signal. Then the BBS can just send it a signal and finish. Then the program that was waiting for the signal plays the sound while the BBS moves on.
Just a thought that way the BBS isn't the one playing the sound just telling another program to do it.
|23|04Dr|16|12Claw
|16|14Sysop |12Noverdu |14BBS |04(|14Noverdu.com|04)
|10Standard Ports for SSH/Telnet Web/
HTTP://|14Noverdu.com:808
|22|01fsxNet/MRC Chat/Registered Doors!/50Nodes/No Time Use! Stay On!|16|07
--- Mystic BBS v1.12 A47 2021/12/24 (Linux/64)
* Origin: Noverdu BBS (21:1/210)