I feel like we need to use Voice ATC instead so we understand our intentions because sometimes we make mistakes and sometimes the ATC don’t understand what somebody wants to do or maybe the other way around. With voice atc we can speak directly to the person and help them understand what they want to do. For example, I want to takeoff on this runway to follow the flight plan.
Voice chat is something that has been said by developers will not happen, at least anytime in the foreseeable future. Voice opens up a number of potential abuse issues with users around the entire world from all ages. Being a mobile device introduces a new level of legality that needs to be considered.