Samsung A920 User Manual
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Section 2B: Controlling Your Phone’s Settings
When establishing your Sprint PCS Service, please call Sprint 
Customer Service via the state Telecommunications Relay 
Service (TRS) by first dialing
. Then provide
the state TRS with this number: 866-727-4889.
To turn TTY Mode on or off:
1.
Press Menu > Settings > Others > TTY Mode from standby 
mode. (An informational message is displayed.)
2.
Press .
3.
Select TTY Full, TTY+Hear, TTY+Talk, or TTY Off and
press .
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
Sprint 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.