Making Connections
Phone Calls and Voicemail
92
TTY Mode
A TTY (teletypewriter, also known as a TDD or Text Telephone) is a telecommunications device
that allows people who are deaf, hard of hearing, or who have speech or language disabilities, to
communicate by telephone.
Your phone is compatible with select TTY devices. Please check with the manufacturer of your TTY
device to ensure that it supports digital wireless transmission. Your phone and TTY device will
connect using a special cable that plugs into your phone’s headset jack. If this cable was not
provided with your TTY device, contact your TTY device manufacturer to purchase the connector
cable.
To turn TTY Mode on or off:
1. From home, tap
Phone
.
2. Tap
Menu
>
Settings
>
Call settings
>
TTY mode
.
3. Tap
TTY Full
,
TTY HCO
, or
TTY VCO
to turn TTY mode on.
– or –
Tap
TTY Off
to turn TTY mode off.
Your phone’s TTY mode is set.
Note
: When enabled, TTY mode may impair the audio quality of non-TTY devices connected to the
headset jack.
Warning
:
9-1-1 Emergency Calling
It is recommended that TTY users make emergency calls by other means, including
Telecommunications Relay Services (TRS), analog cellular, and landline communications.
Wireless TTY calls to 9-1-1 may be corrupted when received by public safety answering points
(PSAPs), rendering some communications unintelligible. The problem encountered appears
related to TTY equipment or software used by PSAPs. This matter has been brought to the
attention of the FCC, and the wireless industry and the PSAP community are currently working to
resolve this.
Hearing Aids
Your phone supports HAC (Hearing Aid Compatibility) function. When you turn on the hearing aid
compatibility and use a hearing aid device with a telecoil in it to answer the phone, it will help you
hear more clearly during the phone call.
1. From home, tap
Phone
.
2. Tap
Menu
>
Settings
>
Call settings
.
3. Check
Hearing
aids
to turn on HAC.
The hearing aid compatibility is turned on.