© 2011 Sixhills Consulting LtdIP Telephony – Architecture Convergence for Computing & Telephony• Fundamental architecture change• Reduced cost of operation– Telecom line costs– MACs– Cabling– Operational Support• Availability of low cost bandwidth enables Quality of Service to meet or exceed existing telephony standards• Parallel infrastructure• Arcane configuration requiring engineer attendance on site• Labour intensive MACs (manual access required)• Single infrastructure• Web access for configuration and management• Centrally managed (electronic)FromToServerRouterPABXPSTNPSTNIP WAN/ MANServerRouterPABXPABXHQEnterprise ServersGeneral voice accessTied lineEngineer for MACs*ServerRouterPSTNIP WAN/ MANServerRouterHQEnterprise ServersIPT ServerWeb – based managementExternal parties*MAC = Move, Add, ChangeInformation Technology Sourcing FundamentalsP7
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