document: VoIP : leveraging existing cable architecture As operators prepare to enter the voice-over-IP fray , they are searching for ways to leverage their existing two-way , interactive infrastructure . There are several approaches for supporting VoIP on top of the core IP transport network . The one garnering the most interest , especially in the United States , is based on the PacketCable 1.x architecture . This article discusses the PacketCable-based approach
doc_bio_tags: B O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O O O O B I I I O O O O O O O O O O O B I O O O O O O O O O O O O O O O
extractive_keyphrases: cable architecture voip core ip transport network united states
abstractive_keyphrases: voice-over-ip two-way interactive infrastructure packetcable 1.x architecture packetcable-based approach