Samsung SPH-A640 User Manual (user Manual) (ver.1.0) (English) - Page 78

WARNING, Telecommunications Relay Services TRS, analog - mobile software

Page 78 highlights

Note: In TTY Mode, your phone will display the TTY access icon when a headset or TTY device is plugged in. If TTY mode is enabled, the audio quality of non-TTY devices connected to the headset jack may be impaired. WARNING 911 Emergency Calling Trumpet Mobile 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 PSAP community are currently working to resolve this. 56 Section 2B: Controlling Your Phone's Settings

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56
Section 2B: Controlling Your Phone’s Settings
Note:
In TTY Mode, your phone will display the TTY access icon
when a headset or TTY device is plugged in.
If TTY mode is enabled, the audio quality of non-TTY
devices connected to the headset jack may be
impaired.
WARNING
911 Emergency Calling
Trumpet Mobile 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 PSAP community are currently working
to resolve this.