For any #Blind folks interested in volunteering for Harris/Walz or other Democratic campaigns, I'm happy to report that Scale2Win, the dialer they use for phone-banking, is entirely browser-based and works well with screen-readers. (I used VoiceOver in Safari on my iPhone.) There is a script you're encouraged to follow and interact with during calls, so having a Braille display connected helped too. Didn't talk to many actual people but still had a positive experience.