Great idea. TCN makes call center software that's accessible for the blind. One idea might be to talk with them to see if they have success stories about who uses their software.
$1​
Another call center software company specializing in accessibility is
$1 ​
Also, depending on where you're located (I know you said rural), you might find a job that's mean to support local people who are blind, such as this program in Ohio.
$1 They might have a remote option.
​
Apparently call centers are such a good match that many organizations are partnering with them, like Chicago's lighthouse for the blind :
$1