There are a few ways to use TTY on your phone. The easiest way is to go to Settings, then General, and then Accessibility. You can toggle TTY on or off here. Another way is to go to the Phone app and select the TTY button (it looks like a telephone). If you have a TTY app installed, it will be listed here.

The function of TTY mode is to allow people who are unable to use a keyboard or other input device to communicate with computers.

Yes, TTYs (teletypewriters) are still in use. They are mainly used by people with disabilities or who are not able to use other forms of communication.

Yes, TTY is free. However, you may need to install specific software on your device in order to use it.

411 is the emergency telephone number in the United States.

To use a relay service, you will need to find a relay service provider and set up an account with them. Once you have an account, you will need to provide your ISP with the IP address of the relay service provider’s server. The ISP will then forward all traffic that is not destined for your own device to the relay service provider’s server.

Text relay service is a way for people with disabilities to communicate by text. You sign up for a free account, and then send and receive messages using the text message service.

61 is the international access code for the United States.

411 is a telephone number for customer service.

A TTY relay service is a telecommunication service that allows people who are deaf or hard of hearing to communicate with people who are hearing.