To log into their mailbox with a TTY device, such as a text phone, mailbox owners must dial *17 and then take the analog telephone handset off hook. When they are connected, users see prompts on the display of the text phone. For requests such as "Press 1 for …" users should dial from the keypad of the telephone. For messages followed by GA (go ahead) users are required to type text using their text device. For more information, refer User Guide for Audix TTY Interface (555-300-710).