Access for 9-1-1 and Telephone Emergency Services

Q: Does Title II require that telephone emergency service systems be compatible with all codes used for TTY communications?

A: No. At present, telephone emergency services must only be compatible with the Baudot format. Until it can be technically proven that communications in another format can operate in a reliable and compatible manner in a given telephone emergency environment, a State or local government agency is not required to provide direct access to computer modems using formats other than Baudot.