VIPMUD only supports out of band MSP (used by those on screen readers)

So I need the driver to negotiate MSP just like it would GMCP, and then provide an efun to do the telnet sub negotiations.

https://www.zuggsoft.com/zmud/msp.htm as an example

They implement it exactly as https://wiki.mudlet.org/w/Manual:Supported_Protocols#MSP_over_OOB

Basically

IAC SB TELOPT_MSP !!SOUND(cow.wav L=2 V=100) IAC SE