TTY stands for Text Telephone. It is also sometimes called a TDD, or Telecommunication Device for the Deaf. TTY is the more widely accepted term, however, as TTYs are used by many people, not just people who are deaf.
A TTY is a special device that lets people who are deaf, hard of hearing, or speech-impaired use the telephone to communicate, by allowing them to type messages back and forth to one another instead of talking and listening. A TTY is required at both ends of the conversation in order to communicate.
When TTY mode is on, the mobile phone will communicate with you through a TTY machine. NOTE: If TTY mode is on, some mobile phones may lose ability to take or make voice calls. Some other features of your mobile phone may also not work as expected. So, if you do not really intend to use TTY terminal, you should keep TTY mode off.
To use a TTY, you set a telephone handset onto special acoustic cups built into the TTY (some TTY models can be plugged directly into a telephone line). Then, type the message you want to send on the TTY's keyboard. As you type, the message is sent over the phone line, just like your voice would be sent over the phone line if you talked. You can read the other person's response on the TTY's text display.
If you don't have a TTY, you can still call a person who is deaf, hard of hearing, or speech-impaired by using the Telecommunications Relay Service (TRS). With TRS, a special operator types whatever you say so that the person you are calling can read your words on his or her TTY display. He or she will type back a response, which the TRS operator will read aloud for you to hear over the phone. Toll free TRS services are available 24 hours a day, 365 days a year.
- The program communicates through IP and uses standard session initiation protocol (SIP). IpTTY enables virtually every user on your telephony network to communicate with customer TTY machines or the Text Relay Service (TRS), without the need for expensive analog lines or FXS gateways.
- I use Software TTY on Apple 7 plus device without relay service. Just TTY to TTY anywhere as I use to TTY call to contact Bank of America for emergency if my debit/credit cards has been lost or stolen (Avoid relay service may steal my CC numbers as I would be scam victim) and I can TTY call to contract AAA tow truck service if my car break down while I am on vacation.
Tty App Iphone
You can visit the Ultratec website for information about a wide range of TTYs for home, office and personal use. Or, visit WCI for all your assistive device needs, including the CapTel (Captioned Telephone).