In this work, we discuss the construction process of the voice portal counterpart of a departamental web site.  VoiceXML has been used as the dialog modelling language. A prototypical system has been built using our own VoiceXML interpreter, which easily integrates different implementation platforms. A general discussion of VoiceXML advantages and disadvantages is also reported and a simple startup procedure is proposed as a means to build voice portals starting from legacy web sites.