Phone Calls 40
YourphoneiscompatiblewithselectTTYdevices.PleasecheckwiththemanufacturerofyourTTY
devicetoensurethatitsupportsdigitalwirelesstransmission.YourphoneandTTYdevicewill
connectusingaspecialcablethatplugsintoyourphone'sheadsetjack.Ifthiscablewasnot
providedwithyourTTYdevice,contactyourTTYdevicemanufacturertopurchasetheconnector
cable.
ToturnTTYModeonoroff:
1.
Tap >touchandhold >System settings>Call>TTY mode.
2. TouchTTY Full,TTY HCO,orTTY VCOtoturnTTYmodeon.
–or–
TouchTTY OfftoturnTTYmodeoff.
Note:Whenenabled,TTYmodemayimpairtheaudioqualityofnon-TTYdevicesconnectedtothe
headsetjack.
Warning:9-1-1 Emergency Calling
ItisrecommendedthatTTYusersmakeemergencycallsbyothermeans,including
TelecommunicationsRelayServices(TRS),analogcellular,andlandlinecommunications.Wireless
TTYcallsto9-1-1maybecorruptedwhenreceivedbypublicsafetyansweringpoints(PSAPs),
renderingsomecommunicationsunintelligible.TheproblemencounteredappearsrelatedtoTTY
equipmentorsoftwareusedbyPSAPs.ThismatterhasbeenbroughttotheattentionoftheFCC,
andthewirelessindustryandthePSAPcommunityarecurrentlyworkingtoresolvethis.