Cisco IOS 12.0 Solutions for Multiservice Applications shows you how to configure your router or access server to support voice, video, and broadband transmission. Cisco's voice and video support are implemented using voice packet technology. In voice packet technology, voice signals are packetized and transported in compliance with ITU-T specification H.323, which is the ITU-T specification for transmitting multimedia (voice, video, and data) across a local-area network (LAN).