Voice Carry-Over (VCO) allows individuals to:

Voice Carry-Over (VCO) is designed to assist individuals who are hard of hearing or deaf by allowing them to speak directly to the person on the other end of a communication while also receiving the typed responses. The core function of VCO is that it enables a person to use their voice to convey messages, while they can read the responses that are typed back to them through a teletypewriter (TTY) or similar device.

This combination of speaking and receiving typed messages makes communication far more fluid and intuitive for individuals who may still have some vocal capability but benefit from visual responses. In this context, having the ability to communicate verbally while reading responses from the other party is the fundamental advantage of VCO technology, making interaction more personal and efficient compared to other methods that may limit communication to either spoken words or sign language only.