gThis ArchitectureDialogic /VocalTecMicom NaturalMicrosystems/ Inter-Tel Dialogic /VocalTecCisco ShorelineTeleworks TouchwaveCommunicationsPhonet SphereCommunications QuicknetTechnologiesSelsiusSummaryIP telephony offer corporations the possibility of reducing their telecommunications expense by taking advantage of the less expensive cost structure of the Internet and by ultimately consolidating network management and administration in a single wide area network. The promise of IP telephony has attracted vendors from across the industry - companies specializing in voice processing, data communications, and startups. These vendors have met the technical challenges of IP telephony with a variety of architectural solutions. Although new products for IP telephony are announced on an increasingly frequent basis, the concepts presented here will serve as a framework to help evaluate the IP telephony market and select a solution that serves your needs....
