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Using a Text Telephone
A Text Telephone (TTY) is used by those who are hearing or speech impaired to translate typed text
to voice and vice versa. To use the Wireless Home Phone with TTY, you must change the TTY mode
from the default (None) to one of the following modes:
• Full TTY translates both text to voice and voice to text. The person using the TTY can type
outgoing messages (which are translated to voice on the other end) as well as read messages
that have been translated from the connected caller’s voice.
• Voice Carry Over (VCO) translates incoming voice to text, allowing the person using the TTY
to speak directly to the other caller and read translated text on the TTY screen.
• Hearing Carry Over (HCO) translates text typed to voice, allowing the person using the TTY to
type instead of speak yet hear the connected caller’s voice.
To change TTY mode on the Wireless Home Phone, dial ##56*n# where n indicates the TTY to use:
0 - None (TTY is disabled)
1 - Full TTY mode
2 - VCO mode
3 - HCO mode
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