Samsung A640 - Manual (Page 83)

Section 2B: Controlling Your Phone’s Settings 61
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Airplane Mode
Airplane Mode allows you to use many of your phone’s
features, such as Games, Notepad, and Voice Memos when
you are in an airplane or in any other area where making or
receiving calls or data is prohibited. When your phone is in
Airplane Mode, it cannot send or receive any calls or access
online information.
To set your phone to Airplane Mode:
1. Select Menu > Settings > Others > Airplane Mode.
2. Read the disclaimer and press .
3. Select On or Off and press .
While in Airplane Mode, your phone’s standby screen will
display “Phone off.”
TTY Use With Sprint PCS Service
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 supports digital wireless transmission. Your phone and
TTY device will 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 connector cable.