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Large-Scale VTOA Switching Node Architecture
Hiroshi SUNAGA Takenori OKUTANI Kou MIYAKE
IEICE TRANSACTIONS on Communications
Publication Date: 1999/01/25
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching and Communication Processing
VTOA, ATM, AAL type 2, communication switching node,
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This paper describes key technologies for establishing a large-scale public switching node system architecture for handling voice and telephony over ATM (VTOA). VTOA is one of the most promising ATM applications, which allows network operating companies to provide a less-expensive but relatively high quality telephone service, by employing voice-data compression and the efficient transmission capabilities of AAL2. We discuss several technical aspects of VTOA handling system architecture, such as the optimum basis for the node, i. e. , STM versus ATM, the appropriate network structure, and suitable signalling. These key points are evaluated from the standpoints of economy, ease of implementation, and extensibility. Our proposed methods should provide the basis for constructing an efficient and cost-effective VTOA handling network.