HTC One A9 - CDMA Call Settings

Settings 227
CDMA Call Settings
Usetheseoptionstoenablehearingaidcompatibility,andadjustseveralcallsettings,suchas
teletypewriterandDDTM.
1.
Tap > > Settings.
2. TapCall.
3. TapCDMA call settings.
TTY Mode
ATTY(teletypewriter,alsoknownasaTDDorTextTelephone)isatelecommunicationsphonethat
allowspeoplewhoaredeaf,hardofhearing,orwhohavespeechorlanguagedisabilities,to
communicatebytelephone.
YourphoneiscompatiblewithselectTTYphones.PleasecheckwiththemanufacturerofyourTTY
phonetoensurethatitsupportsdigitalwirelesstransmission.YourphoneandTTYphonewill
connectusingaspecialcablethatplugsintoyourphone’sheadsetjack.Ifthiscablewasnot
providedwithyourTTYphone,contactyourTTYphonemanufacturertopurchasetheconnector
cable.
WhenestablishingyourSprintservice,pleasecallSprintCustomerServiceusing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.
Tap > > Settings.
2. TapCall.
3. TapCDMA call settings>TTY mode.
4. TapTTY Full,TTY HCO,orTTY VCO.TapTTY OfftoturnTTYmodeoff.
Note:Whenenabled,TTYmodemayimpairtheaudioqualityofnon-TTYphonesconnectedtothe
headsetjack.
Warning:9-1-1 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9-1-1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thePSAPcommunityarecurrentlyworkingtoresolvethis.
DDTM Mode
Selectthisoptionifyouwanttodirectallcallstoyourvoicemailwhenyouareusingdataconnection.