Voice Carry-Over (VCO)
Dial 7-1-1 or 1-877-447-5992
Voice Carry Over (VCO) allows people with a hearing loss to speak directly to hearing people. When the hearing person speaks, the Relay Operator serves as the VCO party's "ears" by typing all spoken words on a TTY or text display.
For more information:
How Voice Carry-Over Works
VCO with Privacy
Increased privacy can be made by typing/voicing to the relay operator "privacy on". With this activated, the Relay Operator will not hear the VCO user's voice and only types the standard telephone user's responses back to the deaf/hard-of-hearing user.
VCO to TTY
Dial 7-1-1 or 1-877-447-5992
The Relay Operator will only type what you say to the TTY user you are calling. Whatever the TTY user types will go directly to your TTY or text display equipment for you to read. "GA" is needed for this type of call.
For more information:
How VCO to TTY Works
VCO to VCO
Dial 7-1-1 or 1-877-447-5992
The Relay Operator will serve as both parties' "ears" and type not only what you say to your party but also what is said to you. "GA" is needed for this type of call.
For more information:
How VCO to VCO Works
2-Line VCO
Dial 7-1-1 or 1-877-447-5992
Two-line VCO allows a customer with two telephone lines to use one line for speaking directly to a hearing person while the other line is used to receive the hearing person's typed responses at the same time. This feature provides a more natural flow of conversation without the pauses of single-line calls.
For more information:
How 2-Line VCO Works
Voice
Voice Carry-Over (VCO) 
Voice Carry Over