This book focuses largely on enabling technologies for network convergence. A principal aim is to show where parallel functions exist in fixed and mobile voice network architectures and to explain how these functions will be combined. The authors describe the components of a future converged architecture and consider the following key aspects: QoS Requirements, Proposed Solution Architectures, Protocol and Interface options, Underlying Network Issues and Security issues. The book also compares and describes initiatives from several standards bodies working to simplify to a clean architecture and a common set of protocols. The impact on a Multi Protocol Label Switching (MPLS) network, the preferred method of transport for the core network, will be considered in detail.Thus, aside from obvious mappings like aBusya, many of the ISUP to SIP mappings became either 480 Temporarily Unavailable, meaning: aPlease try again in a little whilea or 500 ... ISUP in SIP as previously described, but processing the ISUP in the SIP network rather than bridging it to another part of the PSTN. ... Within the network, one example of DTMF usage is to enter telephone credit card numbers.
|Title||:||Converged Multimedia Networks|
|Author||:||Juliet Bates, Chris Gallon, Matthew Bocci, Stuart Walker, Tom Taylor|
|Publisher||:||John Wiley & Sons - 2006-08-30|