electronics and gadgets

Telecommunication devices for the deaf are widely known. These enable persons with no hearing to make or receive telephone calls. The device is attached to a telephone calls. The device is attached to a telephone and resembles a small keyboard with a screen to display the incoming or outgoing messages. Some TDDs have a paper printout to record a permanent copy of the conservation.

To use a TDD, the user types a message on the keyboard that is automatically converted into tones and transmitted over the phone line to another TDD , which converts the message back into text room. In this system, both the sender and the receiver of the message must have access to the technology.

Although these technologies are not typically used in the class room they enables student with disabilities to interact with each other outside of the school environment for both academic and social reasons, just their non-disabled peers do.