An advanced intelligent network (AIN) telephony service provided in a public switched telephone network (PSTN) is controlled based on instructions from a subscriber, browsing a packet switched data network using a voice browser. A voice extensible markup language (VXML) platform is connected to a web server and a service control point (SCP). The web server stores announcements that can be easily created and modified by a subscriber. When the VXML platform receives an announcement ID from the SCP, the VXML platform determines a location where the announcement is stored based on the ID, and then plays the remotely stored announcement. Thus, the announcements can be easily changed without affecting the SCP and other AIN network elements.