Ability to Type Instead of Speak During Phone/Video Calls

People that have difficulty speaking, or cannot speak, cannot use RingCentral to place a phone call or speak during a video call (they could use chat, but this feature is something we would like to extend to video calls as well. We would like for someone to have the ability to place or receive a call through the app, hear the caller, and be able to type their responses and have that response read back to the caller.