munication devices, such as communication boards or electronic or compute-based alternative communication devices, also often referred to as augmentative and alternative communication (AAC) devices, to produce speech-like sound for the individual. Compared to conventional assistive device using the symbols or graphics-like language, microprocessor-based communication boards with individual-tailored switches or keyboards have been better developed for special education teacher or speech therapist [4][5]. The disabled person would point to a symbolic icon or switches for "speaking out" a word or phase in order to communicate with a person. For example, an AAC translator can convert a "drink" icon followed by "yes" icon to express "I want -14-ABSTRACT Wireless telecommunications holds particular promise for people with speech impairment because it can provide convenience for communication and enhanceuser s mobility. However, people with speech impairments are likely to also have varied movement disorders which result in the inability to use the existing voice telephone facility. The aim of this research is to extend the current augmentative and alternative communication (AAC) system to wireless telecommunication service for speech-impaired subjects. A pocket personal computer (PPC) with wireless modules is adopted herein, that can be functioned as a portable AAC device, voice pager within a range, and mobile phone. The touch screen of PPC with designed graphics icon can be served as large buttons to activate the high-fidelity sound that is in turns sent to the wireless modules for "talking" through the phone. An AAC layout editor is used to link the pre-recorded sound to the graphics icon and to compile the icon-based graphics for each individual. In addition, levels of dynamic linkages, including script-based, category of use, semantic linkage, and frequency of use are implemented for assisting the speech impairment user to retrieve these pre-stored conversational items which can speed up the communication rate.