To turnTTY Mode onor off:

1.Press >Settings >Others>TTY.

(An informational message is displayed.)

2.Read the disclaimer and press OK (left softkey).

3.Select Enableto turn TTY mode On.

– or –

Select Disable to turn TTY mode Off.

Note:

InTTY Mode, your phone will display theTTY access icon.

If TTY mode is enabled, the audio quality of non-TTY devices connected to the headset jack may be impaired.

WARNING

911 Emergency Calling

Sprint recommends thatTTY users make emergency calls by other means,includingTelecommunications Relay Services (TRS), analog cellular, and landline communications.WirelessTTY calls to 911 may be corrupted when received by public safety answering points (PSAPs), rendering some communications unintelligible.The problem encountered appears related toTTY 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.

66 Section 2B: Controlling Your Phone’s Settings

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Sprint Nextel S1 manual To turnTTY Mode onor off, Press Settings OthersTTY