Samsung SPH-A640 User Manual (user Manual) (ver.1.0) (English) - Page 77
TTY Use With Trumpet Mobile Service
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Phone Basics TTY Use With Trumpet Mobile 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. When establishing your Trumpet Mobile Service, please call Trumpet Mobile Customer Care via the state Telecommunications Relay Service (TRS) by first dialing 7 PQRS TALK . Then provide the state TRS with this number: 888-774-2000. To turn TTY Options on or off: 1. Press Menu > Settings > Others > TTY Mode from standby mode. (An informational message is displayed.) 2. Press . 3. Select TTY Off, TTY + Hear, TTY+ Talk or TTY Full and press . Section 2B: Controlling Your Phone's Settings 55