36 CFR Part 1194 - Proposed Information and Communication Technology (ICT) Standards and Guidelines NPRM

Advisory 410.6.5 HCO and VCO Support. This provision supports the use of simultaneous text and speech in two-way communication, including telecommunications relay service. HCO allows a person with a speech disability to type their side of a conversation which is read by the other party and to listen directly to their voice. VCO allows a person who is deaf or hard of hearing to read conversation that is typed by the other party and to speak directly to them. HCO and VCO may be facilitated by a telecommunications relay service communication assistant.