I obviously don't know what the case is here, but switching to text meetings or live captioning isn't necessarily a full solution for all deaf people.
If you have an "ASL-first" person on your team, it might be extremely useful to take a college course on ASL, if only to learn some fundamentals (sign space, facial expressions as grammatical constructs, etc), a description of deaf culture (like, it exists and varies from region to region), and the inevitable "hey class, let's debunk some myths about deaf people" talk.
(ASL is American Sign Language. Substitute your region's dominate sign language. I did hear that not every sign language is as linguistically rich as ASL?)