What type of TTY test should be conducted according to best practices?

Conducting unannounced tests of TTY (Text Telephone) systems is aligned with best practices because it ensures that the system is functioning correctly at any time and enhances the preparedness of the communication center. Unannounced tests simulate real-world conditions where a caller may use a TTY device in an emergency without prior notice. This approach helps identify any potential issues or weaknesses in the system without the influence of preparation, allowing for timely adjustments to be made.

The unpredictability of unannounced tests also reinforces the importance of consistent operational readiness, enabling telecommunicators to respond effectively in actual emergency situations. Being accustomed to working with TTY technology without an agenda encourages familiarity and efficacy among staff, ensuring that they are equipped to assist callers who rely on these devices when emergencies arise.