Under the Customer Service Standard of the AODA, service providers must communicate with customers in ways that take their disabilities into account. For instance, some customers will need information in alternative formats, such as Braille, large print, or accessible websites. Likewise, some customers will need to use communication supports, such as American Sign language (ASL) interpretation, speechreading, or captioning. In addition, providers must serve customers who use communication devices. In this article, we describe a few different types of communication devices.

Read more at
https://aoda.ca/understanding-communication-devices/