What is VCO?

Voice Carry Over (VCO) lets individuals with a hearing loss continue to use their own voice on the telephone.

Ultratec's technology of VCO gives people the ability to speak directly to the person they are calling, then read that person's response on their TTY or Uniphone display. No more straining to hear the response, or asking people to repeat themselves. Because you can read their words, the meaning comes through loud and clear every time. And the conversation maintains a personal, natural feeling, because people are using their own voice.

VCO calls can be made one of two ways, either directly between two callers or with the help of a Telecommunications Relay Service (TRS).