VCO (Voice Carry Over)

From NENA Knowledge Base

VCO (Voice Carry Over) is a technology which utilizes both voice and text or video communications, allowing a person with a hearing disability to speak to the other party and read their responses simultaneously as typed or signed by the communications assistant via a text or video-capable device.

Relevant NENA Documents


NENA-STA-027, NENA E9-1-1 PSAP Equipment Standards