This thesis dissertation, written in Spanish, presents a new model for the linguistic specification and the computational management of man-machine dialogues following commands issued in spoken natural language. Our aim is to design and implement a conversational system for the automatic telephone task scenario, namely Delfos. Voice dialing represents a current trend in research, the purpose of which is to provide functional systems for products ranging from domestic appliances such as a video or a washing machine to more sophisticated environments such as a complete house, with an interface in spoken natural language. Our system, Delfos, represents a challenge for the fields of Language Engineering and Computational Linguistics as it implies the integration of different technologies such...