Like at all?? Wow.

Maybe get a decent Bluetooth speaker phone thingy? Get your own or the org can pay, which is mote than justified as a cost of accomidation to avoid ablism. The people who can't or dont want to attend in person can participate remotely that way, same as they do now. Since the tech has become available and normalized I have attended various events set up that way. Need to practice using it before rolling out, and start with a committee or something small to work out technical issues.

Then make it so attending the meeting in person has social benefit like pre and post chit chat, maybe hangout or food sometimes. Make a pan of brownies to share. Or shoplift cheese and dates. the informal waiting around time is important as well as business. (Unless your meetings are extremely meandering.) Those who attend in person will have more coherency due to being physically present with each other. Which will incentivise attendance.

Depending on your organizational context, could possibly try to work around the ablism by supporting people to attend if possible such as organizing transportation either by carpooling or paying cab fare for people who truely cannot make it otherwise. (Just an example.) A hardship travel fund.

Another strategy is to rotate the meeting location around rather than defaulting to somewhere "central" which typically favors those who live in the city. The downtown people then need to have some commitment to occasionally going "far away" to a suburb or neighboring town, to share the burden of travel. And finding suitable meeting space can be difficult anywhere. But you learn a lot about your surroundings and create relationships while searching for them.

Idk what kind of group you're in, where or with whom, so may or may not be exactly applicable. All the above is very doable though. IMO planning meetings is a foundational skill for any organizer/activist/revolutionary individual or group. It is not out of reach for anybody. It always includes some sort of thinking such as the above no matter the context. It is never a matter of just announcing a time and location you feel like and everyone just stops their life to obey. Planning meetings, including logistically difficult ones, is a way to learn about how to think about balancing the conflicting needs of various people, to do things fairly. And practical tasks like securing a venue, communicating to everyone, setting up and tidying after. Depending on your membership these are all things that people may have never done before, in which case they should all learn. They are skills of democracy.