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2B. Settings 31
Settings
TTY Use With Sprint Service
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 device is compatible with select TTY devices. Please check with the manufacturer of your TTY device to
ensure that it supports digital wireless transmission. Your device and TTY device will connect using a special
cable that plugs into your device’s headset jack. If this cable was not provided with your TTY device, contact
your TTY device manufacturer to purchase the connector cable.
When establishing your Sprint service, please call Sprint Customer Service using the state
Telecommunications Relay Service (TRS) by first dialing . Then provide
the state TRS with this number:
866-727-4889.
To turn TTY Mode on or off:
1. Press
> and tap Settings > Call settings > Enable TTY support.
2. Tap
Full mode, VCO mode, or HCO mode to turn TTY mode on.
– or –
Tap
Off to turn TTY mode off.
Security Settings
Protecting Your Device with a Screen Lock
You can increase the security of your device by creating a screen unlock pattern. When enabled, you have to
draw the correct unlock pattern on the screen to unlock the device’s control keys and buttons
and touch screen.
To create and enable the screen unlock pattern:
1. Press
> and tap Settings > Security > Set unlock pattern.
2. Read the information on the screen and tap
Next.
3. Study the example pattern on the screen, and then tap
Next.
4. Draw the screen unlock pattern by connecting at least four dots in a vertical, horizontal or diagonal
direction. Lift your finger from the screen when finished.
5. The device records the pattern. Tap
Continue.
6. When prompted, draw the screen unlock pattern again, and then tap
Confirm.
Note
When enabled, TTY mode may impair the audio quality of non-TTY devices connected to the headset jack.
WARNING
911 Emergency Calling
Sprint recommends that TTY users make emergency calls by other means, including
Telecommunications Relay Services (TRS), analog cellular, and landline communications. Wireless TTY
calls to 911 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.
Note
You must slide your finger on the screen to create the pattern and not tap individual dots.