AT&T Z331 - Manual (Page 66)

Accessibility
TTY Mode
Your.handset.is.a.TTY-compatible.device..Simply.connect.the.TTY.equipment.to.
the.headset.jack.
. From.idle.mode,.select.Menu.>.Settings.>.Phone.>.TTY setting.
. .Select.one.of.the.following.options.and.press.the.OK Key.for.Select.
. •. .Full: Users.who.cannot.talk.or.hear.may.use.this.setting.to.send.and.receive.
text.messages.through.TTY.equipment.
. •. .Read & talk:.Users.who.can.talk,.but.cannot.hear,.may.use.this.setting.to.talk.
through.the.phone.and.receive.responses.via.text.messages.
. •. Write & hear:.Users.who.can.hear,.but.cannot.talk,.may.use.this.setting.to.
listen.to.the.other.party.and.respond.via.text.messages.
. •. .Off: Users.who.can.hear.and.speak.may.use.this.setting.to.disable.
TTY.support.
HAC (Hearing Aid Compatibility) Mode
This.phone.supports.HAC.(Hearing.Aid.Compatibility).function..When.you..
turn.on.the.Hearing.Aid.Mode.and.use.a.hearing.aid.with.a.telecoil.to.answer.the.
phone,.it.will.help.you.hear.more.clearly.while.speaking.on.the.phone..For.more.
detailed.information.on.HAC,.please.refer.to.Care and Maintenance.>.Turn on
the HAC Setting.
. From.idle.mode,.select.Menu.>.Settings.>.Phone.>.T-coil setting.
. .Select.On.or.Off.and.press.the.OK Key.for.Select to.confirm.
Your.Z331.has.been.tested.for.hearing.aid.device.compatibility.and.has.an..
M3/T4.rating.
60 Accessibility