Samsung GALAXY S SGH-T989D - Manual (Page 181)

Changing Your Settings 173
TTY Mode
A TTY (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 is
compatible with digital cell phones.
Your phone and TTY device connect via 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 correct cable.
1. Press  and then tap (Settings) 
Call  TTY mode.
2. Tap Full TTY to activate the feature, or TTY mode off to
deactivate the feature. Off is the default setting.
Hearing aids
This menu is used to activate or deactivate hearing aid
compatibility for this device.
1. Press  and then tap (Settings) 
Call.
2. Tap the Hearing aids field to activate the feature (green
check mark), or deactivate the feature. Off is the default
setting.
Additional Settings
1. Press  and then tap (Settings) 
Call  Additional settings.
2. Tap one of the following options:
• Caller ID: chooses whether your number is displayed when
someone answers your outgoing call. Choose from: Network
default, Hide number, or Show number.
• Call barring: allows the restriction of specific types of calls from
this phone (All outgoing calls, Intel calls, Int’l calls except home,
All incoming calls, Incoming when roaming).
• Call waiting: notifies you of an incoming call while you are on
another call. When deactivated, all incoming calls are directed to
your voicemail if you are already on an active call.
• Auto redial: automatically redial the dialed number if it is unable to
connect or the call is cut off.
• Fixed Dialing Numbers: Fixed Dialing Numbers (FDN) allows you to
restrict outgoing calls to a limited set of phone numbers. Tap Enable
FDN, enter your P N2 code and tap OK.