Many Deaf and Hard of Hearing people use a VCO (voice carry over) phone with the relay system. When using this system, the VCO user is able to read the response of the person at the other end of the line, which is typed by the relay operator. When it comes time for the VCO user to respond, he or she can just speak the way they normally would, and their voice is then heard directly by the party at the other end.
