In this paper we describe the research and development of the first Slovak spoken language dialogue system. The dialogue system is based on the DARPA Communicator architecture. The proposed system consists of the Galaxy hub and telephony, automatic speech recognition, text-to-speech, backend, transport and VoiceXML dialogue management modules. The SLDS enables multi-user interaction in the Slovak language. The functionality of the SLDS is demonstrated and tested via two pilot applications, "Weather forecast for Slovakia" and "Timetable of Slovak Railways". The required information is retrieved from Internet resources in multi-user mode through PSTN, ISDN, GSM and/or VoIP network.