SettingsSection 2B. Settings 49TTY Use With Sprint ServiceA TTY (teletypewriter, also known as a TDD or TextTelephone) is a telecommunications device that allowspeople who are deaf, hard of hearing, or who havespeech or language disabilities, to communicate bytelephone.Your phone is compatible with select TTY devices.Please check with the manufacturer of your TTY deviceto ensure that it supports digital wireless transmission.Your phone and TTY device will connect via a specialcable that plugs into your phone’s headset jack. If thiscable was not provided with your TTY device, contactyour TTY device manufacturer to purchase theconnector cable.When establishing your wireless service, please callSprint via the state Telecommunications Relay Service(TRS) by first dialing . Then providethe state TRS with this number: 866-727-4889.1. While in standby mode, select Main Menu and press.2. Select Settings > More... > Accessibility > TTY.3. Read the informational message and press orOK (left softkey).4. Select TTY Off, TTY Full, TTY + Hear, or TTY + Talk.PQRSPQRSNote In TTY Mode, your phone will display the TTY accessicon when a headset or TTY device is plugged in.If TTY mode is enabled, the audio quality of non-TTYdevices connected to the headset jack may beimpaired.WARNING 911 Emergency CallingSprint recommends that TTY users makeemergency calls by other means, includingTelecommunications Relay Services (TRS),analog cellular, and landline communications.Wireless TTY calls to 911 may be corruptedwhen received by public safety answeringpoints (PSAPs), rendering somecommunications unintelligible. The problemencountered appears related to TTYequipment or software used by PSAPs. Thismatter has been brought to the attention ofthe FCC, and the wireless industry and PSAPcommunity are currently working to resolvethis.M520_Sprint.book Page 49 Thursday, September 18, 2008 12:34 PM